CONTENTS XI 



Page 



Response to Non-nutritional Environment 312 



For the Disease 312 



Signs 312 



Histology 313 



Variability 313 



Transmission 313 



Literature 313 



X. The Angular Leaf Spot OF Cotton 314 



Type 314 



Cause — Bacterium malvacearum EFS 321 



Technic 330 



Determine 333 



For the Organism 333 



Morphology 333 



Cultural Characters 333 



Response to Non-nutritional Environment 335 



For the Disease 335 



Signs 335 



Histology 336 



Variability 336 



Transmission 337 



Literature 339 



XI. The Mulberry Blight 340 



Type 340 



Cause — Bacterium mori Boyer and Lambeit emend. EFS 342 



Technic 351 



Determine 354 



For the Organism 354 



Moiphology 354 



Cultural Characters 354 



Response to Non-nutritional Environment 355 



For the Disease 356 



Signs 356 



Histology 357 



Variability . 358 



Transmission 358 



Literature 358 



XIL Fire-blight of Apple, Pear, Quince, Etc 359 



Type 359 



C&ws>&^Bacillus amylovorus (T. J. Burrill) Trevisan 367 



Technic 374 



Determine 380 



For the Organism 380 



Morphology 380 



Cultural Characters 380 



Response to Non-nutritional Environment 380 



For the Disease 380 



Signs 380 



Histology 381 



