366 CONTENTS. 



Occurrence and course of the disease under domestication — Continued. Page. 



Hybridization 441 



Clinical course 441 



Morbidity and mortality 441 



Hemoglobin estimations 447 



Spontaneous recovery 448 



Immunity 450 



Experimental production of the disease 453 



Trout tumor material in standing water 453 



Feeding trout thyroid tumor 453 



Feeding human cancer liver 453 



Closed circulation 453 



Transplantation and inoculation experiments 454 



Experimental induction of carcinoma 457 



Chemotherapy — Effect of iodine, mercury, and arsenic upon carcinoma of the thyroid 463 



Transmission of thyroid disease to mammals 485 



Dogs 485 



Rats 490 



Possible carriers 495 



Summary, in English 502 



In German 507 



In French 513 



Conclusions, in English 506 



In German 511 



In French 516 



Bibliography 519 



Plates 524 



