— GENE TIC S=^^p^^ 



A Di-montlily journal oi about 600 pa^es to 

 tke annual volume, under the editorship of 



DR. GEORGE H. SHULL 



Professor of Botany and Genetics in 

 Princeton University 



constitutes a complete record of the work of American geneticists. Most of 

 the important papers in this field produced in America find their way into 

 its pages. Sample copy free on request. 



Subscription, $6 per year 

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