THE NEW WALLER-FRANKLIN TRYSOMIC STOCK 
THE FIRST TRYSOMIC STOCK EVER OFFERED TO THE SEED TRADE 
Based on studies commenced by Dr. H. B. Frost at Cornell University in 
1915 and furthered through consultation with our late co-founder Dr. J. H. 
Franklin during the ’20s, the genetic theory of Trysomic doubles in Stocks was 
developed and proven by 1930 to be capable of producing 85% doubleness from 
seed. 
Over ten years of intensive and costly work was necessary before all tech- 
niques of handling this brand new field could be developed. Not only were the 
original crosses difficult to control but it was necessary to develop new yearly 
maintenance systems and production techniques to assure ourselves and our 
trade that once introduced, quality could be maintained. 
At this date of introduction, the Waller-Franklin Seed Company is the only 
flower seed grower with experience in this new field. 
The Trysomic Stock offered produces 85% or more double flowering plants 
when sown from seed. 
In all other respects the Trysomic Giant Imperial Stock is identical to cur- 
rent normal double strains. 
