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KEYSTONE 
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Fig. 6. Keystone 
Hybrid 38. Note 
size, quality, and 
abundance of ears. 
Every stalk has a 
large ear 
PROCESSING KEYSTONE HYBRID CORN 
KEYSTONE HYBRID SEED is carefully hand select¬ 
ed before shelling. Diseased ears, damaged ears, and 
undesirable ears of other types are removed from the 
seed. Only sound ears are used. After all undesirable 
corn is removed the ears are tipped by hand, removing 
the small round grades before the corn is s helled. 
After shelling, the corn passes over a battery of spe¬ 
cial corn graders which grade the corn for width, 
thickness and length, each machine removing only one 
size or grade of seed. Each grade of seed passes over 
three to five screens, every grain having to pass in¬ 
spection over and over again before finally being 
allowed to go into its grade designation. Length 
grading is one of the most important steps in corn 
processing toward securing a uniform stand when 
planted. Uniform length of kernel is essential in se¬ 
curing an accurate drop by corn planters, especially 
those of the edgedrop type. 
Seed of KEYSTONE HYBRIDS is packed in bushel 
bags, and sealed by the Cornell Seed Company. This 
seal is your guarantee and your protection,- do not 
accept seed if the seal has been broken. The bags are 
sewed by machine with red and green thread to dis¬ 
tinguish KEYSTONE SEED from ordinary seed which 
may be packed in the same type bag. 
Behind every bus hel of KEYSTONE HYBRID CORN 
sent out by Cornell Seed Company is nearly a century 
of dependable service in seeds. Since 1845 this service 
has meant "bigger and better crops” for their users. 
We are proud of our record as dependable seedsmen, 
and assure you, the consumer, that through scientific 
breeding, careful production, and accurate processing 
KEYSTONE HYBRID SEED CORN may be depended 
upon for the same paramount quality that has made 
KEYSTONE one of the foremost names in the seed 
world. 
Fig. 3. Our Corn Breeder Ba3$ a Tassel to make a 
Hand Pollination 
