INDEX 



491 



Meiosis in ova, 62 

 Meischer's tubes, 357 

 Melanoma, 1Q4, 204 

 malignant, 204 

 metastasis of, 204 

 Membrana granulosa, 149 

 Membrane, Reichert's, ^t, 

 Meningitis, in lymphocytic choriomeningitis, 



441 

 Mesenteries, 124 

 Mesoderm, distribution of, 28 

 formation of, 15 

 lateral, 29 



wings of, 15 

 paraxial, 29 



relation to head process, 21 

 somatic, t,2 

 splanchnic, 32 

 Mesometrium, orientation of embryo in rela- 

 tion to, 15 

 Metastasis, 170 

 Metestrus (see estrous cycle) 

 Mice, care of, 358, 360, 371, 373, 376, 455, 475 

 Micrococcus tctragenits, 415 

 Mid-gut, 44 



Milk, transmission of Spirillum in, 432 

 Milk influence, 321 



transferred by tissue graft, 323 

 Mites, 374 



control measures, 375 

 ]\litochondria in sperm, 2 

 Monocyte sarcoma, 219 

 Monocytes, 92 

 Monocytoma, 214, 217 

 Morgan's bacillus, 388 

 Mortality, in mouse typhoid, 384 

 Morula, 4 



Mouse septicemia, 398 

 Mouse typhoid, 381 



bacteriological diagnosis of, 388 

 blood picture, 382 

 etiology, 386 



infections with related organisms, 388 

 occurrence, 381 

 organisms related to, 388 

 pathology, 384 

 prevention of, 390 

 signs of illness, 381 

 the experimental disease, ^^^ 

 the natural disease, 381 

 Mouth, development of, 28 



Mits hactriamis, carcinoma of pancreas in, 221 



tumors in, 270 

 Muscle, nematodes in, 369 



protozoan infection in, 357 



tumors of, 194, 205, 227 

 Mutations, causing heterozygosis in inbred 

 strains, 330 



chromosome, 242 



detection of, 338 



gene, 234 



in transplanted tumors, 288, 303 



rules for assigning symbols to, 242 



sex-linked, 244, 286 



with irregular inheritance, 240 

 IMyeloblasts, 95 

 ISIyelocytes, 95 

 Myelocytoma, 217 

 Myeloid cell tumors, 216 

 Myelosarcoma, 217 

 Myobia musculi, 375 

 Myocardium, 45, 91 

 Myocoptes musculinus, 376 

 Myometrium, 156 

 Myosarcoma, 194, 205, 227 



N 



Nematodes, 349, 364 



in intestine, 365, 369 



in liver, 369 



in lungs, 367 



in muscle, 369 



in stomach, 368 

 Nephritis, due to A", inuris, 356 

 Neural groove, 23 

 Neutrophils, 92 

 Nipples, 158 



Nippostrongylus muris, 367 

 Non-epithelial tumors, 268, 269 

 Normoblasts, 94 

 Nosopsyllus fascialiis, 363, 371 

 Notochord, 24 



classed as entoderm, 24 

 Nourishment of embryo, 39 



O 



Ocular lesions, in mouse typhoid, 390 

 Ollulanus tricuspis, 369 

 Omphalomesenteric artery, 50 



