INDEX 



305 



Satellite cells, 96, 101 

 Scales, ctenoid, 136 



placoid, 135 



reptile, 138 

 Scrotum, 242 



Sebaceous glands, 143, 144 

 Sebum, 144 

 Secreting areas, 42 

 Secretion, 40 



granules, 40 

 Sectioning, 275 



celloidin, 278 



paraffin, 275 

 Segmentation cavity, 22, 23 

 Seminal vesicles, 244, 246 

 Seminiferous tubule, 234, 235, 243 

 Sensory endings, 104 

 Serous cells, compared with mucous, 45 



membrane (serosa), 55, 169, 174 

 Sertoli cells, 236 

 Sharpey's fibers, 64 

 Sheath of Henle, 102 



of Schwann, 101 

 Silver nitrate, 286 

 Sinusoids, liver, 185, 187 



spleen, 128, 129, 130 

 Skin, 134. »SVe Integument. 

 Small intestine, 173 



amphibian, 32, 174, 175 

 fish, 174 



mammalian, 175, 177 

 reptilian, 175 

 Smooth muscle, 81 

 Sole, 140, 141 

 Somatopleure, 23 

 Sperm, 238 

 Spermatids, 238 

 Spermatocytes, 23S 

 Spermatocytogenesis, 238 

 Spermatogenesis, 236, 237 

 Spermatogonia, 238 

 Spermiogenesis, 238 

 Spicules, bone, 61 

 Spinal canal, 110 



cord, 110 



ganglia, 107 

 Spiral valve, 178 

 Splanchnopleure, 23 

 Spleen, 127-130 



blood circulation in, 128, 129 



development of, 77 



function of, 130 



lower vertebrates, 130 



mammalian, 128, 129 



sinusoids, 128, 129, 130 

 Staining, celloidin section, 286 



parafhn sections, 282 



progressive, 283 



regressive, 284 

 Stereocilia, 38 

 Stomach, 169 

 20 



Stomach, amphibian, 170, 171 



fish, 169, 170 



mammalian, 171, 172 



reptilian, 171 

 Stratum, coi-neum, 134, 140, 1 12 



germinitivuiu, 134, 140, 143 



granulosuni, 141, 143 



lucidum, 141, 143 

 Striated bordei', 37 

 Stroma, 71 



Subcutaneous tissue, 50, 51 

 Subcutis, 135 

 Sublingual gland, 16() 

 Submaxillary gland, 165 

 Submucosa, 167, 168 

 Sweat gland, 43, 140, 142 

 Swim bladder, 148 

 Sympathetic ganglia, 108 

 Synapse, 98 

 S>Ticytium, 17 



Taste buds, 163 

 Technique, laboratorv, 265 

 Teeth, 159 

 Telophase, 19 

 Tendons, 57 

 Testes, 234 



amphibian, 241 



development of, 234 



endocrine activity, 239 



interstitial tissue (cells), 239 



mammalian, 242 



reptilian, 242 

 Theca folliculi, 214, 216 

 externa, 216 

 interna, 216 

 Thrombocytes (spindle cells j, 76 

 Thymocytes, 13!^ 

 Thymol,' 279 

 Thymus, 131, 132 



involution, 133 

 Thyroid, 255, 257, 258 



anlage, 256 



cells, 256 



follicles, 256 



function of, 257 

 Tigroid bodies. See Xissl bodies. 

 Tissue cultiu-e, 21 



fluid (juice), 50, 54 

 Toluol in embedding, 272 

 Tongue, 159 



amphibian, 160 



fish, 159 



mammalian, 161-162 



reptilian, 160 

 Tonsils, 122, 123 

 Trachea, 151, 152 



Traumatic degeneration of ner\'e hbers, 

 108 



