50 



CALIFORNIA CITRUS CULTURE. 



a serious attack on the walnut. Professor Home finds pears and figs 

 especially resistant to this disease. 



All interested in citrus culture should possess Bulletin 218, Experi- 

 ment Station, University of California, by Professor Ralph E. Smith 

 and Elizabeth H. Smith. For one who wishes to study more deeply into 

 this intricate subject of fungi, etc., Duggar's Fungous Diseases of 

 Plants will prove admirable. 



