INDEX. 



PAGE 



Adelges abieticolens 279 



coccineus 279 



strobilobius 279 



Alfalfa 98 



Alternaria solani 2 



Apemon 241 



gracilis 243 



maudas 244 



nigriventris 245 



pectoralis 243 



pulchra 244 



Apple diseases 185 



cultural studies 192 



inoculation experiments 186 



literature cited 199 



rots 3 



scab 4 



trees, affected by weather 12 



crotch injury • 17 



Announcements vi 



Ascospora beyerinckii 195 



Asindulum 234 



coxale 234 



flavum 235 



montanum 234 



Bacillus amylovorus 18 



phytophthorus 311 



solanicola 311 



solanisaprus 31 1 



Bibliography, fertility and hatching of eggs 157 



Bitter rot of apple, treatment 10 



Blackleg of potato 310 



character and appearance 312 



economic aspects 319 



geographical distribution 318 



means of distribution 315 



means of prevention 323 



spread by decayed seed tubers 317 



