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 
