XU CONTENTS 



Page 



Vaiiability 383 



Transmission 384 



Eradication of the Disease 385 



Literature 387 



XIII. The Oli\e Tubercle 389 



Type 389 



Cause — Bacterium savastanoi EFS 394 



Technic 404 



Determine 406 



For the Organism 406 



Morpholog3^ 406 



Cultural Characters 407 



Response to Non-nutiitional Environment 409 



For the Disease 409 



Signs 409 



Histology 409 



Variability 410 



Transmission 410 



Literature 411 



XIV. The Crow'x Gall -413 



Type 413 



Cause — Bacterium tumefaciens Smith and Townsend 421 



Technic 432 



Determine 451 



For the Organism 451 



Morphology 451 



Cultural Characters 451 



Response to Non-nutiitional Environment 457 



For the Disease 459 



Signs 459 



Histology 460 



Variability 468 



Transmission '' 469 



Literature 471 



PART IV 

 MISCELLANEOUS 



I. Notes on Some Addiiional Diseases 473 



II. Suggestion of Subjects for Special Study 474 



III. Production of Tumors in the Absence op Parasites 477 



IV. Speculations on the Chemical and Physical Stimuli Underlying 

 Tumor-formation 510 



V. On The Production of Teratosis in the Absence of Tumors and 



OF Parasites 574 



