The Mind that developed four of the top five 
highest-yielding 1936 hybrid strains available to 
corn growers. h4r. C. L. Gunn is a pioneer among 
developers of hybrids adapted for planting in 
northern and western areas of the corn belt. 
His long, practical experience and expert advice 
is at the disposal of De Kalb customers. Mr. Gunn 
and Mr. St. John are recognized as two of the 
foremost corn breeders in America. Their recom¬ 
mendations concerning seed selection and ac¬ 
curate planting will help you reduce your costs 
and increase your profits per acre. 
The Mind that developed some of the most suc¬ 
cessful Hybrids adapted to increasing yield and 
quality while overcoming handicaps such as poor 
soil, lack of moisture, plant diseases and pest 
attacks. During the thirteen years he served as 
agronomist for the U. S. Department of Agricul¬ 
ture and professor of plant industry at Purdue 
University, Mr. R. R. St. John gained unparalleled 
experience in developing strains of hybrids having 
the ability to overcome adverse conditions of 
many kinds. Mr. St. John’s advice and services 
are available to De Kalb customers. 
plant at Humboldt, Iowa. (23) Mod¬ 
ern De Kalb dryer building. (24) 
One of many De Kalb germination 
tests. (25) Corner of a De Kalb Hy¬ 
brid warehouse. (26) Bins of foun¬ 
dation stock in fireproof corn vault. 
(27) Second sorting and conveyor 
belt in De Kalb dryer. (28) Grading 
De Kalb Hybrids for planter plate 
sizes. (29) De Kalb makes many 
tests. We do the experimenting—- 
not you. 
experimental plot sheet. (7) Enter¬ 
ing yield records. (8) Getting new 
crosses ready for experimental 
plots. (9) Wiring pedigree tags 
through inbred ears. (10) Handling 
De Kalb Hybrid orders. (11) An in- 
bred passes Mr. Gunn’s careful 
scrutiny. (12) All that was left of a 
valuable inbred, after the hot, dry 
season of 1934. (13) Gunn tells St. 
John he wouldn’t trade these three 
inbred kernels for diamonds of 
The numbered photographs on this 
page are representative of the ex¬ 
tensive organization back of the 
De Kalb Research Department. (1) 
Shows a De Kalb detasseling crew, 
ready to start work. (2) The De 
Kalb plan board. (3) Mr. Rasmusen 
and Mr. Roberts mapping out De 
Kalb production fields. (4) Mr. 
Gunn and Prof. St. John checking 
inbred pedigrees. (5) De Kalb office 
force. (6) Recording new crosses on 
equal size. ( 14 ) bheiimg and bag¬ 
ging foundation stock. (15) Field 
showing De Kalb crossing opera¬ 
tion. (16) De Kalb Agricultural As¬ 
sociation main office. (17) Conveyor 
and sorting belt in De Kalb dryer. 
(18) De Kalb seed cleaning machin¬ 
ery. (19) Fireproof vault building 
for storing De Kalb foundation 
stock. (20) De Kalb plant at Water¬ 
man, Ill. (21) De Kalb seed corn 
grading machinery. (22) De Kalb 
