Twenty-ninth Annual Report
OF THE
Agricultural
Experiment
Station
OF THE
Alabama Polytechnic Institute
Auburn, Alabama
January, 1917

ALABAMA POLYTECHNIC INSTITUTE.
Auburn, Ala., Jan. 30, 1917.
G3overnor Charles Henderson,
Executive Department,
Montgomery, Ala.
Sir:
I have the honor here with to transmit to you the Twenty-
ninth Annual Report of the Agricultural Experiment 
Station
of the Alabama Polytechnic Institute.
This report is made in accordance with the Act of 
-Congress'
-approved March 2, 1887, establishing agricultural experiment
stations, and the Act. of Congress approved March 16, 
1906,
known as the Adams Act.
Respectfully,
CHAS. C. THACH.,
President.

Auburn, Ala., Jan. 29, 1917.
Dr. C. C. Thach, President,
Alabama Polytechnic Institute,
Auburn, Ala.
Sir:
I herewith submit the Twenty-ninth Annual Report of the
Experiment Station of the Alabama Polytechnic Institute for
the fiscal year 
ending June 
30, 1916.
It contains the detailed report of the Director 
and Agricul-
turist, the Treasurer, the Chemists, the Veterinarian, the Bota-
nist, the Horticulturist, the Entomologist, the Plant Pathologist,
and the Animal Husbandman, for the year ending December
31, 1916.
Respectfully submitted,
J. F. DUGGAR,
Director, Experiment Station.

AGRICULTURAL EXPERIMENT STATION.
TRUSTEES.
His Excellency, Charles Henderson, President ----- Ex-Officio,
V. F. Feagin, Superintendent of Education--------Ex-Officio.
A. W. Bell _------- Anniston, Ala.
Harry Herzfeld --- Alexander City, Ala.
Oliver R. Hood --------- Gadsden, Ala.
C. S. McDowell, Jr.--------------------------Eufaula, Ala.
W. K. Terry _Birmingham, Ala.
W. H. Oates - -Mobile, Ala.
T. D. Samford ----------- Opelika, Ala.
R. F. Kolb------------------------------Montgomery, Ala.
J. A. Rogers -- Gainesville, Ala.
C. M Sherrod----------------------------Courtland, Ala.
COMMITTEE OF TRUSTEES ON EXPERIMENT STATION.
R. F. KOLB- - Montgomery
A. W . BELL-................ Anniston
J. A. ROGERS -------------- Gainesville
C. S. McDOWELL, JR.-----------------------------------Eufaula
STATION STAFF.
C. C. THACH, President of the College.
J. F. DUGGAR, Director.
AGRICULTURE:
J. F. Duggar, Agriculturist.
E. F. Cauthen, Associate.
IM. J. Funchess, Associate.
J. T. Williamsoil Field Agt.
O. IH. Sellers, Assistant.
0. L. Howell, Assistant.
F. E. Boyd, Assistant. *
VETERINARY SCIENCE:
C. A. Cary, 
Veterinarian.
CHEMISTRY:
J. T. Anderson, Chemist.
Soils and Crops.
C. L. Hare, Physiological
Chemist.
, Assistant.
BOTANY:
W. J. Robbins, Botanist.
A. B. Massey, Assistant.
HORTICULTURE:
G. C. Starcher, Horticulturist
J. C. C. Price, Associate.
P. 0. Davis, Field Agent.
ENTOMOLOGY
W. E. Hinds, Entomologist.
F. L. Thomas, Assistant.
E. A. Vaughan, Field Asst,
ANIMAL HUSBANDRY:
G. S. Templeton, Animal
Husbandman.
H. C. Ferguson, Assistant."
E. Gibbens, Assistant.
F. W. Wendt, Assistant.
A. E. Hayes, Assistant.
AGRICULTURAL ENGINEERING:
R. U. Blasingame, Agricul-
tural Engineer.
PLANT PATHOLOGY:
G. L. Peltier, Pathologist.
*In co-operation with United States Department of Agriculture.
REPORT OF HATCH AND ADAMS FUNDS FOR 1915-1916.
RECEIPTS.
Hatch Adams.
To amount from U. S. Treasury--------$15,000.00 
$15,000.00
DISBURSEMENTS.
By Salaries $ 7,450.00 $10,096.80
By Labor 2,401.08 1,771.52
By Publications 1,293.71
By Postage and Stationery 276.25 162.98
By Freight and Express 510.28 259.04
By Heat, Light, Water and Power 410.46 343.14
By Chemicals and Laboratory Supplies 139.92 489.60
By Seeds, Plants and Sundry Supplies 586.84 230.39
By Fertilizers 361.89 104.14
By Feeding Stuffs 494.83 372.20
By Library 253.69 62.24
By Tools, Machinery and Appliances 215.06 55.09
By Furniture and Fixtures ----------- 49.55 84.15
By Scientific Apparatus and Specimens 7.22 219.19
By Live Stock 268.00 183.80
By Traveling Expenses 164.17 238.02
By Contingent Expenses 20.00
By Buildings and Land 97.05 327.70
Total $15,000.00 $15000.00
State of Alabama:
Lee County.
Personally appeared before me, B. L. Shi, a Notary Public
in and for said county, M. A. Glenn, known to me as Treasurer
of the Alabama Polytechnic Institute, who, being duly sworn,
deposes and says the above foregoing account is true and cor-
rect. Witness my hand this 19th day of January, 1917.
B. L. SHI,
Notary Public, Lee County.
This is to certify that I have compared the account with
the ledger account of the Treasurer, and this is a correct
transcript of the same.
CHAS. C. THACH,
President Alabama Polytechnic Institute.

REPORT OF DIRECTOR AND AGRICULTURIST.
J. F. 'DUGGAR.
Dr. C. C. Thach, President,
Alabama Polytechnic Institute,
Auburn, Alabama.
Sir:
I respectfully submit the following report for the past year
of the work under my charge as Director and Agriculturist of
the Alabama Experiment Station:
PUBLICATIONS.
During the calendar year 1916 the publications of the Ala-
bama Experiment Station consisted of the annual report, six
bulletins, one circular, seven press bulletins, and two indexes,
malking a total of sixteen publications. These constituted a
total of 224,000 copies and an aggregate of 2,534,500 pages in
all editions. The titles and' authors are given below:
Bulletion No. 187: Cabbage; by the Associate Horticulturist
and the Field Agent in Horticulture.
Bulletin No..188: Boll Weevil in Alabama; by the Entomolo-
gist. (From the Local Experiment Fund).
Bulletin No. 189: Wilt Resistant Varieties of Cotton; by the
Associate Agriculturist. (From the Local Experiment Fund).
Bulletin No. 190: Citrus Canker; by the Pathologist.
Bulletin No. 191: The Effect of Certain Organic Compounds
on Plant Growth; by the Associate Agriculturist.
Bulletin No. 192: Cottonseed Meal Compared With Velvet
Beans for Fattening Steers; by the Animal Husbandman and
Assistant. (From the Local Experiment Fund).
Circular No. 34: Annual Report of the Director of the
Experiment Station on Work Done Under the Local Experiment
Law in 1915. (From the Local Experiment Fund).
Press Bulletin No. 83: Controlling the Boll Weevil by Col-
lecting Weevils and Infested Squares; by the Entomologist.
(From Local Experiment Fund).
Press Bulletin No. 84: Wilt Resistant Varieties of Cotton;
by the Associate Agriculturist and Recorder. (From the Local
Experiment Fund).
12
Press Bulletin No. 85: Separation of Corn Cockle Seed from
Commercial Narrow Leaf Vetch- Seed; by the Assistant in Agri-
culture.
Press Bulletin No. 86: Tests of Varieties of Corn in 1916;
by the Associate Agriculturist.
Press Bulletin No. 87: Varieties of Fruits for a Home
Orchard in Alabama; by the Associate Horticulturist and Field
Agent in Horticulture. (From the Local Experiment Fund).
Press Bulletin No. 88: Tests of Varieties of Cotton in 1916;
by the Associate Agriculturist.
Press Bulletin No. 89: The Home Orchard; Setting and Care;
by the Associate Horticulturist and Field Agent in Horticulture.
(From the Local Experiment Fund).
Bulletin Index for Volume 22. (1914).
Bulletin Index for Volume 23. (1915).
STAFF.
Several changes have occurred among the heads of depart-
ments during the past year. Dr. W. J. Robbins, of Cornell
University, was appointed Bdtanist of the Station in succession
to Dr. J. S. Caldwell, who had resigned to accept a position in
another state. Dr. Robbins began work in February, 1916.
A vacancy, created by the resignation of Dr. F. A. Wolf, to
accept a position in another state, was filled in June, 1916, by
the appointment of Dr. Geo. L. Peltier, then of the University
and Experiment Station of Illinois.
Several changes have occurred among the assistants in the
several departments, as may be noted from the list of the
Station Staff published on another phge.
REPORT OF DEPARTMENTS.
The attached reports of the Botanist, the Acting Horticul-
turist, the Entomologist, the Plant Pathologist, the Animal Hus-
bandman, the Chemists, and the Veterinarian, present a brief
statement of the experimental work in their respective depart-
ments.
AGRICULTURAL DEPARTMENT.
(Work Under Hatch and Adams Funds from Congress).
Plant breeding has continued to be one of the lines of work
13
that has occupied much of the time of the members of this
,department. The large amount of data accumulated on cor-
relations between yield and various qualities of the corn plant
and corn ear have been to a large extent summarized and put
in shape for publication. There remains to be added the field
results for 1916, and a study of the correlations between cer-
tain additional qualities, for which the data are on record.
The breeding of oats has been continued, and field tests
indicate the practical value of this. It is hoped that at an
early date ther'e may be prepared for publication a part of the
data accumulated by a number of year's breeding of cotton and
oats. Field tests, both at Auburn and other parts of the State,
continue to give increasing evidence of the value of the strains
of cotton, corn, and oats, evolved as a result of the breeding
work at Auburn.
It is believed also that the results when fully analyzed will
throw important light on some of the details of plant breeding
that are important from a scientific standpoint.
The following is a list of the principal field experiments
conducted on the Station farm in 1916:
Alfalfa, fertilizer, variety and culture experiments.
Barley, variety tests.
Cotton, effects of planting light and heavy seed.
Cotton, variety tests.
Cotton, breeding with Cook, Cleveland and hybrids.
Cotton, tests of long staple varieties.
Cotton, culture experiments, including thick and thin plant-
ing.
Cotton, sub-soiling.
Cotton, time of applying nitrate of soda.
Corn, variety tests.
Corn, Williamson versus other methods of culture.
Corn, best rotation for.
Cowpeas, variety and culture tests.
Cowpeas, for soil improvement.
Clovers, tests of species and varieties.
Clovers, best plants for sowing with legumes.
Grains, as forage crops.
Forage crops, tests of 
many species and varieties.
14
Girasses, tests of species and varieties.
Hog crops, chufas, peanuts, soybeans, etc.
Hemp.
Kudzu.
Nitrogen, best sources of.
"Oats, variety tests, methods of seeding, and 
time of sowing.
Oats, breeding experiments.
Oats, fall sown versus spring strains.
Phosphates, raw versus acid, versus basic.
Peanuts, variety tests.
Rotation experiments.
Rye, variety tests.
Silage, yield of different crops for.
Soybean and cowpea mixtures for hay.
Soybeans, varieties.
Soybeans, tests of varieties.
Sorghum, tests of varieties.
Subsoiling.
Sudan grass, culture tests.
,Sugar cane, Japanese, as a forage crop.
Velvet beans, varieties for seed and for 1ay.
Vetches, varieties.
Vetches, best mixtui'es.
Wheat, breeding experiments.
Wheat, varieties.
In the Division of Soils a bulletin (No. 191) has been prepared
and published by Professor M. J. Funchess giving the results
of some of his experiments relative to soil toxins. The work
of Professor Funchess along this line is now being supple-
mented by the. Botanist of the Station, who is studying the
decomposition of the toxins. Professor Funchess is also con-
tinuing his study of changes in the nitrates and other soluble
constituents of the soil under various conditions.
LOCAL EXPERIMENT WORK WITH FIELD CROPS THROUGHOUT
THE STATE.
Experimental work, (supported by a State appropriation)
intriended to throw light on the adaptability (f special varieties
to the different soils and climatic conditions in the different
parts of the State has been conducted in every county. Fe
'
r-
15
Ltilizer experiments have been made with the principal field
-crops in a large number of counties.
The impossibility of securing an adequate supply of potash,
and the high cost of this fertilizer constituent, has made it
necessary to reduce somewhat the number of fertilizer experi-
ments with cotton.
It should be borne in mind that the departments of
the Experiment Station doing local experiment work in the
various counties of 
the State are Agriculture, 
Horticulture,
Animal Husbandry, Entomology, Plant Pathology and Agri-
cultural Engineering. The work of all of these is discussed
in a separate publication constituting an annual report of the
local experimental work of this Station.
Respectfully submitted,
J. F. DUGGAR,
Director of Experiment Station.
REPORT OF BOTANIST.
W. J. ROBBINS.
Prof. J. F. Duggar, Director,
Alabama Experiment Station,
Auburn, Alabama.
Sir:
1. Under the Soils Toxin Project, which is carried on under
the Adams Fund, I can report the following results: The
cause of the disappearance of Vanillin, Cumarin, Pyridine and
Quinoline in the soil has been found to be due to the action
of bacteria. It is believed that the bacteria concerned in the
disappearance of these compounds are more or less specific
for each of them.
We have also found that guanidine carbonate, which is
toxic at very weak concentrations to higher plants in water
culture, is readily used as a source of nitrogen by many of the
soil fungi. The compound appears to be absorbed and used
as such but with the autolysis of the fungi the 
nitrogen in it
appears as ammonia.
2. Some progress has also been made under the Hatch Fund
in a preliminary study of the factors affecting cellulose diges-
tion in fungi. This work is undertaken with the ultimate view
of studying the causes of resistance of many plants to disease.
3. The list of Station projects are:
(1) Soils Toxin project, Adams Fund.
(2) Miscellaneous Botanical Investigations, Hatch Fund.
Respectfully submitted,
WILLIAM J. ROBBINS,
BotanistL
REPORT OF PLANT PATHOLOGIST.
G. L. PELTIER.
Prof. J. F. Duggar, Director,
Agricultural Experiment Station,
Auburn, Alabama.
Sir:
I -am herewith submitting 
a brief statement relative 
to the
Adams Fund project in the Department of Plant Pathology
since my appointment September 1.
The one project we are working on under this Fund is a
study of Citrus Canker. The work of the past few months
has been devoted mainly to one phase of the life history of
the organism. We are attempting to find whether the organism
winters over in the soil on diseased fallen leaves or on diseased
leaves on the trees. Not enough time has been devoted to this
subject to give any definite information.
The work this coming season will be devoted to the many
unknown points which occur in the life of the Citrus Canker
organism. A start will be made in an attempt to find a resistant
stock that will supercede Citrus Trifoliata, which is rather-
susceptible to Citrus Canker, now used entirely as stock for
the Satsuma Grower.
Respectfully submitted,
GEO. L. PELTIER,
Plant Pathologist.
REPORT OF ASSOCIATE HORTICULTURIST.
J. C. C. PRICE.
Professor J. F. Duggar, Director,
Experiment Station,
Auburn, Alabama.
Sir:
I hereby submit report of the work under way in the
Department of Horticulture for the year 1916. Professor
Ernest Walker was head of the Department until September
first, at which time he resigned, and I have had charge of the
work only from that date until the present time.
The experimental work being conducted bythis department
is as follows:
Apples: Bloom notes and notes on yields of apples were
continued, but since there are but few trees in the orchard,
and only six of any one variety, the yield notes do not possess
much of value.
Peaches: We continued our bloom notes, yield notes and
notes on disease resistance for about twenty varieties for home
aud commercial use. Some excellent data have been secured,
We have under way some pruning experiments to determine
the relative effect of winter and summer pruning.
Pecans: Twelve varieties are now growing on the Station
grounds that promise good results. We are comparing differ-
ent methods of grafting and budding of the pecan, with indica-
tions that valuable results will be secured.
Pears: An experiment which has been running for a number
of years to note the result of the use of potash as a preventive
of "fire blight" is still being carried on, but owing to the
scarcity of potash it seems that we may have to abandon this
for the incoming year. We have planted a variety pear orchard
consisting of eighteen of the leading varieties. A part of these
trees should yield their first crop in 1917.
Grapes: Our variety vineyard was'planted to test variety
adaptability and disease resistance of this fruit. It gives
promise of excellent results. The early freeze of the present
19
winter has damaged.the vines considerably, but what the final
damage will prove to be is problematical.
Vegetables: We are still continuing our variety and ferti-
lization tests on tomatoes. We have also similar experiments
under way with sweet potatoes as well as experiments in tuber
selection, methods of hbedding, vines vs. slips for late planting,
and storage with a view of obtaining data on the keeping
qualities of all varieties used in these tests Variety tests were
continued with sweet corn, peppers, okra, egg plant and
cucumber. We are also continuing our work on the winter
forcing of lettuce in cold frames with varieties and fertilizer
tests of the same. We are also continuing our forcing of
tomatoes in the greenhouse as well as work in the greenhouse-
with carnations and chrysanthemums.
The above is in addition to the Local Experiment work,
conducted in a number of counties and separately reported.
Respectfully submitted,
J. C. C. PRICE,
Associate Horticulturist.
REPORT OF ENTOMOLOGIST.
W. E. HINDS.
Prof. J. F. Duggar,
Auburn, Alabama.
Sir:
Regarding Entomological projects in 1916, I would report
as follows:
ADAMS FUND PROJECTS.
1. Rice Weevil Investigations: This project has received
principal attention during the past year and substantial pro-
gress has been made. It is planned to embody the principal
results in a bulletin which may be issued within the next few
months. After the final study of the notes is made for this
publication, we can tell better whether the project will call
for further attention during the season of 1917.
2. Arsenate of Lead,Investigations: The work on this pro-
ject. during the past season has added much data both in the
field and in the laboratory. Co-operation on the chemical
analytical work has been arranged with Dr. J. T. Anderson
of this Station. The project is not yet completed.
OTHER ENTOMOLOGICAL PROJECTS.
1. Mexican Cotton Boll Weevil: The advance of this im-
portant cotton pest has been followed for the season 1916, and
it now occurs in every county in Alabama. A small area in
the extreme northeastern corner of the State remains unin-
fested as yet. Some study has been made of life history,
parasites, methods of stalk destruction, etc. Boll weevil work
has been done under Local Experiment Fund.
2. Green Plant Bug (Nezara viridula): This pest has been
steadily increasing in abundance during the past three years,
and in the southeastern counties of Alabama has become a pest
of extreme importance. It occurs in small numbers to the
northern edge of the State. It attacks a very large variety of
garden and field crops, and in some sections appears to be a
much more serious pest than is the boll weevil. Considerable
study has been given to this pest during the fall months of 1916
under Local Experiment Fund.
21
As this pest has not been studied extensively by any station
or by the U. S. Bureau of Entomology, and promises to be of
prime importance particularly in the territory where cotton
production is most severely affected by the boll weevil, it is
quite possible that we shall desire to make this an Adams
Fund project in 1917, taking the place of the Rice Weevil
project, which may then be considered completed.
3. Argentine Ant: This important pest has become estab-
lished at several points in Alabama, and has received con-
siderable attention during 1916, particularly at Montgomery
and Letohatchee. It is certain to command increasing atten-
tion in the future. -This work has been done under Local
Experiment Fund.
The publication work of the Department during 1916 has
been as follows:
Bulletin No. 188: Boll Weevil In Alabama.
Press Bulletin No. 83: Controlling the Boll Weevil by Col-
lecting Weevils and Infested Squares.
The Department has contributed to Plate Service, and has
also published numerous articles in daily and weekly news-
papers and in special 
Agricultural Journals.
The extension correspondence work of the year has required
approximately 1100 dictated letters, and a large number of
,circular letters together with about 450 bulletins.
Respectfully submitted,
W. E. HINDS,
Entomologist.
REPORT OF ANIMAL HUSBANDMAN.
G. S. TEMPLETON.
Prof. J. F. Duggar, Director,
Alabama Experiment 
Station,
Auburn, Alabama.
Sir:
I respectfully submit the following report of experimental
work in the Animal Husbandry Department for the year 1916:
The experimental work conducted at Auburn, Alabama, is
supported by the Hatch and Adams funds, appropriated by
Congress. The experimental work in Marengo, Mobile and
Dale counties is supported by the State appropriation pro-
vided by the Local Experiment Law. The experiments with
the various classes of live stock are as follows:
BEEF CATTLE.
The co-operative steer feeding experiments started at Allen-
ville, Marengo County, Alabama, two years ago were continued
during the year. Forty-five steers are now on feed at Allen-
ville, divided into three lots and fed as follows:
Lot 1-Velvet beans and corn silage.
Lot 2-Cottonseed meal and corn silage.
Lot 3 Cottonseed meal and sorghum silage.
An experiment was conducted during the past summer with
the view of determining the relative carrying capacity of
some of the pasture grasses adapted to the lime lands of West
Alabama. The three grasses compared in this experiment were
Bermuda, Paspalum and Johnson grass. This experiment will
be repeated the coming summer.
The breeding herd of 450 head of pure bred and grade
Herefords is now used in experiment. The herd is divided into,
several lots with the view of testing the different methods of
wintering cattle of various ages, and determining the cost of
producing feeder steers.
DAIRY CATTLE.
The dairy cattle projects at Auburn, Alabama, under way
during the year were as follows:
23
First, a study of the relative feeding value of ground velvet
beans in the pod and cottonseed meal as part of the ration for
milk and butter fat production.
Second, a study of the influence of the above feeds on the
quality of butter.
Third, a comparison of skim milk, Blatchford's Calf Meal
and oat meal as a feed for rearing dairy calves up to sixteen
weeks of age.
SWINE.
The experimental work at Auburn, Alabama, in co-operation
with the Department of Chemistry to determine the influence
of some southern feeds upon the properties (melting point,
iodine value, keeping quality and color) of lards, is still in
progress.
The experimental work at Ozark, Dale County, Alabama,
was continued throughout the year. The experiments under
way on this farm were planned with the view of determining
the cost of producing pork under average farm conditions,
and studying the relative feeding value of crops trpical of
that section for producing 
pork.
POULTRY.
Trhe experimental work at Citronelle, Mobile County, Ala-
bama, was contimnied throughout the year. Several feeds are
being studied as to their relative efficiency and economy in
egg production.
Trwo new features were added to this work during the year:
First, to determine the influence of selection on the egg
production of the flock.
Second, to determine the best age to market poultry.
Respectfully submitted,
GEO. S. TEMPLETON,
Animal Husbandman.
REPORT OF VETERINARIAN.
C. A. CARY.
Prof. J. F. Duggar, Director,
Alabama Experiment Station,
Auburn, Alabama.
Sir:
During 1916 the following lines of work were conducted:
Tests were made to determine the internal toxic effects of
Robi-na pseudacacia, Lolium temulentum and Rhus toxicodend-
ron.
We also repeated tests on the toxic effects of china berries
on pigs.
Some observations were made on the effects of peanuts upon
the ovaries of sows. This work will be investigated more
extensively in 1917.
Some tests were made on the internal effects of nitrate of
soda on dogs and cats.
An attempt has been made to find the eggs of Sclerostoma
pinguicola in the urine or bladder of pigs infested with that
parasite.
Records of the kinds and frequency of the various animal
parasites in chickens, pigs and cattle have been continued.
A press bulletin was issued on hog cholera. It gave a brief
outline of the cause, symptoms, post mortem-lesions, methods
of spreading and preventing the disease.
On account of the extremely wet weather in July and early
August the Summer Series of Farmers Institutes were cut short.
In fact all the Institutes were held prior to the rainy season.
Number of Institutes Held -------------- 12
Average Attendance ------------------- 53
Total Attendance --------------------- 637
The Summer School for Farmers was held at Auburn July
29th to August 5th, in the middle of the rainy season.
Notwithstanding the unfavorable weather conditions, there
were 734 in attendance, and a large number of the Counties
of the State were represented. While the attendance was
25
somewhat less than the previous year, the..lectures and dem-
onstrations were very valuable to the farmers of the State.
Respectfully submitted,
C. A. CARY,
. Veterinarian.
REPORT OF CHEMIST OF SOILS AND CROP
INVESTIGATIONS.
J. T. ANDERSON.
Prof. J. F. Duggar, 
Director,
Alabama Agricultural Experiment Station.
Auburn, Alabama.
Sir:
The following condensed statement of the work of this de-
partment for the year 1916, is respectfully submitted:
1. Adams Project: Soil Requirements by Plant Analysis.
Hitherto the work on this project has been limited to Potash
in the Cotton Plant. As this narrowed down, the analytical
work has been completed, and the manuscript will soon be
ready for the printer.
It was decided to extend the scope of the work so as to
include both phosphoric acid and potash and use the turnip
:as the plant for investigation. Three' different types of soil
were selected for the study, and inbedded cylinders were used
as containers. The same system of fertilization was used as
with the cotton plant, using the three fertilizer constituents
alone and in their several combinations.
2. Adams Project: Arsenate of Lead as an Insecticide. This
work was done in co-operation with the Department of En-
tomology, only the chemical analysis being done by this de-
partment.
3. Miscellaneous. Under this head is included all the
chemical work for the other departments of the Station, as well
as for individual citizens of the State, and embraces the chemi-
cal analysis of corn, hays and other crops used in experimen-
tation, soils, etc.
Respectfully submitted,
JAMES T. ANDERSON,
Chemist, Soils and Crops Investigations.
REPORT OF PHYSIOLOGICAL CHEMIST.
C. L. HARE.
Prof. J. F. Duggar, Director,
Alabama Experiment Station,
Auburn, Alabama.
Sir:
Herewith I submit a report of the investigations of the
Physiological Chemist:
During the year 1916 the work of this department in general
outline has been along the same lines that have beenpursued
for several years.
Experiments in breeding cotton with seed with continuous
high oil content from year to year, shows promising positive
results.
One or two strains of cotton have maintained a high average
percentage of oil in seed throughout the breedingexperiments,
even during years when the amount of oil in cotton seed
generally was below the yearly averages.
The results secured in breeding for cotton seed of high pro-
tein content seem to promise some measure of success.
Experiments designed to show the effect of different kinds
of fertilizers upon the percentages of oil, protein and mineral
constituents, in cotton seed, indicate that the quantities of
these constituents are not materially effected by the difference
in fertilizers used, although the numbers of analyses made to
date are not sufficient to prove the indications.
Determinations of the more important mineral Constituents
in cotton seed have so far failed to show any definite relation-
ship between the percentages of these constituents and the oil
and protein content of the seed.
The analyses of lard from hogs from nine feeding experi-
ments were made during the year, showing some interesting
points, of the effects of some common fat producing feeds
upon the lard.
The following experiments are now in process:
A study of the lard produced by feeding the following:
1. Corn alone.
28
2. Velvet bean meal alone.
3. Corn one half and velvet bean meal one half.
4. Velvet bean and pod meal.
5. Peanut meal one half and corn one half.
6. Peanuts one half and corn one. half.
Respectfully submitted,
C. L. HARE,
Physiological Chemist.