INDEX 



Spaces, of Fontana, 643 



Specific dyes, 740 



Spermatic cord, 494 



Spermatid, and spermatozoon, 484 



Spermatocytes, primary, 463 



Spermatogenesis, 460 



idiozome in, 475 



prespermatid in, 470 

 Spermatogonia, 463 

 Spermatozoon, 475 



histogenesis, and structure of, 485 

 ' human, 486 

 Spinal cord, 596 



basis cornu of, 596 



caput cornu of, 596 



cell column, of Clarke, 602 



central canal of, 598 



central commissure of, 596 



cervical region, lower half of, 602 



cervical region, upper half of, 603 



cervix cornu of, 596 



columns of, 598 



filum terminale of, 600 



gray matter of, 596 



intermediate zone of, 596 



lumbar region of, 600 



nerve roots of, 596 



nucleus of Stilling, of, 602 



regions of, 599 



segments of, 596 



sacral region of, 600 



thoracic region of, 601 



white matter of, 598 

 Spiral organ, of Corti, 702. See also 



Ear. 



Spireme, loose, 24 

 Spleen, 245 



blood vessels of, 246 



development of, 250 



differentiation of, from lymph nodes, 

 249 



functions of, 249 



pulp veins of, 248 

 Splenic cells, 249 

 Splenic nodules, 247 

 Spongioblasts, 589 

 Spongioplasm, 8 



Staining methods, special, 747 



Benda's mitrochondrial technic, 757 



blood, Hasting 's eosinate of methy- 

 lene blue, for, 754 



chromaffin granules, technic for, 759 



ehrpmophilic (tigroid) granules in 

 cyton and dendron, with 

 methylene blue, 750 



connective tissue, Mallory 's, 753 

 with picro-fuchsin (Van Gieson's), 

 752 



cytoplastic granules, eosin and 

 methylene blue mixture, 

 Mann's, 755 



Ehrlich's triacid, 755 



elastic tissue, Weigert's, 753 



fat, osmic acid for demonstrating, 758 



glycogen, Gage's method for demon- 

 strating, 758 



medullate nerve fibers, Weigert-Pal 

 method for demonstrating, 

 748 



mitochondria, 757 



mucinous tissues, specific, 748 



nerve cells, Golgi's, 751 



nerve plexuses and endings, gold 

 chlorid (Ranvier's) for, 752 



neurofibrils, Cajal's, 750 



nitrate of silver, for cement sub- 

 stances, 752 

 Staining of tissues, 738 



double, 746 



in bulk, 739 



progressive, 740 



regressive, 740 

 Stains, aceto-carmin, 744 



alum carmin, 744 



Auerbach 's f uchsin-methyl-green, 756 



borax carmin, 743 



carmin, 743 



Congo red, 746 



Delafield 's hematoxylin, 742 



eosin, 745 



fuchsin, 746 



hematein, 743 

 and eosin, 746 



iron hematoxylin, 747 



