260 



INDEX 



Spermateleosis, mitochondria in, 130, 



141 

 Spermatids, 141 



Golgi apparatus in, 109 

 Spermatocyte, mitochondria in, 129, 141 



structure of, 141 

 Spermatogenesis, 140 



in Cavia, 130, 142, 143, 144 



in Drosophilia funebris, 135 



in Helix, 130 



in Hemiptera, 130, 142 



in Lepidoptera, 130, 142, 143, 144 



vacuolar system in, 143 

 Spermatogonium, mitochondria in, 129 

 Spermatoleosis, 141 et seq. 

 Spermatozoon, formation of, 141 

 Sphcerocarpus, chromosome sets from, 



219 

 Sphere or attraction sphere, 91 

 Spherome in plants, 99 

 Spongospom, nuclear division phe- 

 nomena in, 191 

 Stomach, histology of, 7 



patches of intestinal glands within, 9 

 See also Gastric. 

 Strawberry, polypoidy in, 238 

 «S'?/werg^MS, nucleolar emission in, 136, 152 



Tetraploidy, 225 



Thymus, Hassall's corpuscles in, 26 



histology of, 25, 26 



myoid cells of, 26 

 Thyroid, differences in form of Golgi 

 apparatus and mitochondria in 

 resting and active phases, 128, 129 



Golgi apparatus in, 118 



histology of, 24 

 Tigroid bodies, 117 



Tissue cultivation in vitro, value of, 90 

 Tissues and organs, 6 

 Tonoplasts, 175 

 Tradescantia virginica, chromosomes of, 



180 

 Transillumination, 38 

 Translocation of chromosomes, 133, 134 

 Triploids, 226 

 Triton, mucous cells, gastric epithelium 



of, 101 

 Troncoso's gonioscope, 34 



Trophospongium of Holmgren, 92, 95, 99 



relationship of Golgi system to, 5 

 Tiirk cells in blood, 14 



Vacuolar system in spermatogenesis, 143 

 Vacuoles, contractile, in ciliates, 158 

 in flagellates, 158 



relation to Golgi apparatus, in 

 Protozoa, 114, 115 

 in anterior lens cortex, 

 retroillumination of, 65 

 Vacuome, 91, 98 et seq. 

 in plant cells, 174 

 relation of, to Golgi apparatus, 104, 



105 

 staining of, 99, 100 

 theory, 98 et seq. 

 Viciafaba, root tip of, Golgi apparatus 



in, 170 

 Vitreous fluid, fibrillar or reticulate 

 appearance, by slit-lamp examina- 

 tion, 85 

 normal 33, 85 



pathological conditions of, 



differential diagnosis of, 33, 85 

 Vitellogenesis in mollusca, 145 

 in oogenesis, 144 



mitochondria in, 131, 145, 146, 152, 

 153 



Yolk, albuminous or proteid, formation 



of, 152, 153 

 fatty or lipoidal, derivation of, 151 et 



seq. 

 formation in Ciena intestinalis, 121, 

 152, 153 



in Patella, 122, 145, 146, 147, 148, 

 152, 153, 154 



Golgi apparatus in, 120, 147 et seq. 



methods of, 148 



oogenesis and, 144 



summary of, 148-151 

 nuclei and chromidia, relationship 



between, 145 

 nucleus, formation of, 131, 132 

 varieties of, 147 



Zea mays, cytokinesis in, 203 

 Zoology, 88-163 



pniN'TED IX GREAT BRITAIN »Y THE WHITEFRIARS PRESS, LTD., LONDON AND TONBRIDOE. 



