Ii8 DISEASE IN PLANTS. 



1897 ; Theobald, Insect Life, 1896 ; Ormerod, Manual of 

 Ijtjurioits Insects, 1890, and Handbook of Insects btjiirious to 

 Orchards, etc., 1898. 



The admirable series of pubHcations of the U.S. Depart- 

 ment of Agriculture under the editorship of P.iley and 

 Howard, and entitled Insect Life, 1888- 1895, also abounds 

 in information. 



Further, Taschenberg's Praktische Insektenkiinde, 1879- 

 1880, and Judeich and Nietsche, Z^//r(5//(:/^ der Mitteleurop. 

 Forst. I?tsektenkiinde, 1889. 



For an elementary introduction to the study of fungus 

 diseases, see Marshall Ward, Diseases of Plants, Soc. for 

 Promoting Christian Knowledge, London. 



