VARIETIES AND ENVIRONMENT 33 



presented. The co-operative experiments in New 

 York,* conducted by Prof. J. L. Stone of the Cornell 

 station are interesting in this connection. To gain 

 information relative to the adaptation of variety to 

 local conditions as well as to learn more of the agri- 

 cultural value of different varieties, co-operative ex- 

 periments were established' among the farmers. 

 Seeds of seven to ten varieties of beans were fur- 



FIG. 9 — EARLY SIX WEEKS' BEANS. 



nished each experimenter. These were planted 

 side by side under field conditions. They were 

 given the same treatment and care, harvested and 

 weighed separately so as to ascertain comparative 

 yields. 



The results showed very clearly that there is 

 great difference in the productiveness of the differ- 

 ent varieties when grown on the same soil and under 

 the same conditions, so far as soil and conditions 

 can be made uniform. There was scarcely an ex- 

 periment in the whole list in which some one vari- 

 ety did not yield fully twice as much as some other 

 variety. Again, there was not a variety that did not 



*N Y Bui 210. 



