INDEX 



377 



131 ; of ganglion cells, 146 ; of 

 liver cells, 142 ; round vacuoles 

 in oil-foams, 36, in protoplasm, 

 230, in coagulated colloids, 216 



Radiolaria (Thalassicolla), structure of, 

 92, 93 



Rana esculenta, see Frog 



Red blood corpuscles of the frog, 

 127-131 



Reduction of oil-foams by evaporation, 

 30 



Reinke, electrical experiments on plant 



cells, 279 



and Rodewald, observations upon 

 protoplasm of jEthalium, 170, 

 171 



Remak, observations on nerve structure, 

 159 



Resemblance of oil-foam to protoplasm, 

 85 



Reticular structures due to coagulation, 



201-219 

 theory of protoplasm, 159-176 



Reticulose pseudopodia, 315; oiMilio- 

 lidce, etc., 97-101 



Reticulum, false optical, seen between 

 suspended granules or droplets, 

 and in foams and protoplasm, 

 209-216 ; Altmann's views upon, 

 196-198 ; Pfitzner's views upon, 

 193, 194 ; Vejdowsky's views 

 upon, 194, 195 



Retraction of pseudopodia in Gromia, 

 105 



Retreating movements of drops of water 

 before ether or alcohol, 296-305 



Rhizopoda, marine, with reticulate 

 pseudopodia, 94-101 



Rhynchdmis, structure of ova of, Vej- 

 dowsky's observations on, 194, 

 195, 1% footnote, 253 footnote 



Rindfleisch on adhesion as cause of 

 movement in protoplasm, 290 



Rohde on nerve structures in Annelids, 

 285-287 ; on structure of ganglion 

 cells, 147 



Rotational currents produced in oil- 

 drops, 74 ; in plant cells, 327-330 ; 

 Berthold's views, 291 - 293 ; En- 

 gelmann's explanation of, 277, 

 278 



Rotifers, ova of, 124, 125 



SACHS, alveolar layer in zoospores, 238 ; 

 hypotheses of "imbibition" and 

 protoplasmic movement, 272-274 



Salamandra maculosa, blood corpuscles 

 of, 129 



Sarcoplasm of muscle cells, 325-327 



Schafer on hyaloplasm, 282-284 



Schewiakoff, observations on nuclear 

 division of Euglypha, 253 



Schleicher on structure of cartilage 

 cells, 177 



Schmitz, on limiting surface of proto- 

 plasm, 235 ; on limiting membrane 

 of vacuoles, 228 ; observations 

 upon reticular structures in vege- 

 table protoplasm, 169 



Schneider, Anton, views upon radiate 

 appearances in protoplasm, 258 ; 

 Schneider, C. C. , on fibrillar struc- 

 ture of protoplasm, 182, 183 ; on 

 limiting surface of protoplasm, 

 235, 236 ; on limiting membrane 

 of vacuoles, 229 



Schultze, Max, upon axial thread in 

 pseudopodia of Miliolidce, 100 ; 

 on the fluid nature of protoplasm, 

 220 



Schwalbe, observations on blood cor- 

 puscles and ganglion cells, 166 



Schwarz on granules suspended in a 

 viscid fluid, 266 ; on the nature 

 of protoplasm, 224 ; processes of 

 desolution, 15, 16 ; on protoplasm, 

 204-208 



Schwendener, see Nageli and Schwen- 

 dener 



Secretion, cell membranes formed by, 

 242 



Secretions, structure of, 175, 176 



Sedgwick, reticulum in egg of Peri- 

 patus, 176 



Sepia granules, false network between, 

 209-211 



Sheath of Schwann, 152 



Shells possessing structure of alveolar 

 layer, 241 ; of Gromia, 101 



Sliding movements of granules (Nageli), 

 321 



Soap-bubbles, currents in, 319 



Soap, influence of, in prodiicing foam 

 in oil, 13, 31 ; influence of, in 

 streaming of plant cells (Quincke), 

 306 ; solution for producing ex- 

 tension-currents, 62 



Sphcerechinus, ova of, 125-127 



Sphere of attraction in ovum of Sphcere- 

 chinus, 126 



Spherular theory of protoplasm (Kiinst- 

 ler), 184-191 



Spirema stage of Euglypha, 253 



Spirofibrillse and spirospartse of Fayod, 

 184 



Spirogyra, de Vries's experiments on, 

 232 



Spongioplasma of Leydig, 172 ; and 

 hyaloplasm, 280-287 ; in ganglion 

 cells, 147 



