378 



PROTOPLASM 



Spreading of fluids on solid bodies, 

 293-296 



Staining, methods of, 124 footnote 



Stalk muscle of Zoothamnium, 90 



Strassburger, alveolar layer in zoospores, 

 238 ; on limiting surface of proto- 

 plasm, 235 ; on the nature of 

 protoplasm, 224 ; observations on 

 radiate appearances in embryo sac 

 of Phanerogams, 253 ; protoplasm 

 of vegetable cells, 167 ; on reticu- 

 lar structure of protoplasm, 171 ; 

 on radiate appearances in proto- 

 plasm, 258 



Streaming movements causing fibrous 

 appearances in drops of oil-foam, 

 44 ; circulatory, produced in oil- 

 drops, 74 ; during conversion of 

 oil-paste into foam, 9, 10, 14, 19 ; 

 in foam-drops, 47-52 ; explana- 

 tion of, 74-80 ; continuance of, 

 52, 53 ; increased by warming, 

 79 ; influence of temperature 

 upon, 53, 54 ; influence of gravity, 

 54 ; of light, ib. ; in cells, 80, 81 ; 

 in foam- drops, under action of 

 electric current, 55-60 ; in endo- 

 plasm of Ciliata, 306, 307, 324, 325 ; 

 in Pdomyxa and Amcebce, 308, 

 317-319 ; in plant cells, 122-124, 

 327-330 ; in soap-bubbles, 319 



Striated border of oil-foams, 32 ; round 



vacuoles in oil-foams, 36 

 protoplasm in Amoeba actinophora, 

 110 ; in central capsule of Thalas- 

 sicolla, 93 ; in ciliated cells of 

 Hydatina, 133 ; of ova, 251-253 ; 

 of epithelial cells, 254, 255 ; in 

 cells from gill lamellae of Gam- 

 marus, 131 ; of epithelial cells of 

 Lumbricus, 135 ; in epithelial 

 cells, observations of Friedrich, 

 160 ; of Eberth, Marchi, Leydig, 

 Henle, Pfliiger, and Heidenhain, 161 



Strongylocentrotus, ova of, 182 



Structure of Bacteria and Cyanophycece, 

 1 17-122 ; of blood corpuscles of 

 frog, 127-131 ; of ganglion cells, 

 145-148 ; of nerve fibres, 148-156; 

 of hyaline pseudopodia in Gromia, 

 103-106 ; of muscle fibrils, 325- 

 327 ; of oil-foams, 22-38 ; of plant 

 cell (Quincke), 306 ; of proto- 

 plasm due to coagulation, 201-21 9 ; 

 of thread-like pseudopodia, 98- 

 101 



" Struggle for existence " in currents of 

 plant cells (Berthold), 292 



Suns of nuclear spindle, 246-251 ; in 

 egg of Sphcerechinus, 126 



Superficial extension - currents, 61-80 



(see Extension-Currents) 

 Surface of protoplasm, 234-236 



tension, experiments on, 61-80 ; and 



granular movement, 322, 323 ; and 



protoplasmic movement, theories 



of, 289-307 

 Surirella, granules in protoplasm, 92 ; 



movements of granules in, 320 



TEMPERATURE, influence of, upon 

 streaming movements in foam- 

 drops, 53, 54 



Tension causing fibrous structures in 

 foam, 45, 46 ; in protoplasm, 

 255 



Tentacles of Tokophrya, 88 



Thalassicolla, structure of, 92, 93 



Theories as to radiate appearances in 

 the protoplasm, 257-262; of proto- 

 plasmic movement, 267 et seq. 



Theory of the alveolar nature of proto- 

 plasm, 219 et seq. 



Tokophrya, tentacles, 88 



Tonoplast theory, 230-233 



Trachelomonas, granules in endoplasm, 

 91 



Tradescantia, protoplasm of, 122 et 

 seq.', movements of granules in 

 cells of, 320 



Trinchese, observations on reticular 

 structures in protoplasm, 166, 167 



Triton, blood corpuscles of, 129 



Tubules in nerves, 146-148 



UROCENTRUM, trichocyst layer, 241 

 Urtica, protoplasm of, 122 et seq. 

 Utricle, protoplasmic, in plant cells 

 (Quincke), 306 



VACUOLE of Amoeba terricola, radiate 

 appearances round, 246, 247 



Vacuoles in oil - foams, 22 ; striated 

 border round, 36 ; in protoplasm, 

 227-233 ; in ganglion cells, 147 



Van Beneden, alveolar layer in cells of 

 Ascaris observed by, 238 ; ob- 

 servations on sexual elements of 

 Ascaris, 173, 252 ; on limiting 

 membrane of vacuoles, 228 ; on 

 radiate appearances in protoplasm, 

 260 



Vaucheria, alveolar layer in zoospores 

 of, 238 



Vegetable cells, protoplasm of, see 

 Plant Cells 



Vejdowsky on structure of protoplasm, 

 194, 195 ; observations on egg of 

 Rhynchelmis, 248 footnote, 253 

 footnote 



