

November, 1917 



Price 



25 



Cents 



, 





. 



- 









i 







: 



i 



A 



■ 



i 



) 





f r | 1 



. 









; -^^ 



■ 







i y* 









t 









•^;... 



"■ 



/n 77ns Issue 

 The Arnold Arboretum - - by Prof. C. S. Sargent 



Food Crops Under Glass 

 Can You Cook a Potato? The Heating Problem 



