2 PLANT MATERIAL INTRODUCED 



A collection of walnut varieties, Juglans spp. (Nos. 110021-110051), 

 obtained from Islington, Ontario, Canada, is for testing in the colder 

 parts of the United States. Noteworthy also is a shipment of nearly 

 100 lots of tubers of frost-resistant potato varieties (Nos. 108120- 

 108215) , presented by the Union of Soviet Socialist Republics. 



The botanical determinations of seeds introduced have been made 

 and the nomenclature determined by Paul Russell, who has had general 

 supervision of this inventory. 



B. Y. Morrison, 

 Principal Horticulturist, in Charge,, 



Division of Plant Exploration and Introduction, 



Washington, D. (7., October &£, 1938. 



