INDEX 



373 



IMBIBITION theories to explain proto- 

 plasmic movement, 271-278 



Imitation of karyokinetic spindle, 250 

 footnote 



Increase in volume during formation of 

 foam in oil, 19 



Independent movements of granules, 

 319-323 



Induction shocks causing bursting of 

 alveoli in oil-foams, 26 ; influence 

 of, upon foam-drops, 60, 61 



Infusoria, see Ciliata 



Ink, apparent network between gran- 

 ules of, 209-211 



" Inotagmas " of Engelmann, 274 



Interference streaks in cells of Chara, 

 329, 330 



Interfilar mass of Flemming, 178 



Internal displacements in protoplasm, 

 323-325 



Intestinal epithelium of Branchiobdella, 

 137 



Intracapsular protoplasm of Thalassi- 

 colla, 92 



Investigation of protoplasm, 86 



Iodine-alcohol for fixation, 90, 91 



Iron-hsematoxylin, use of, 124 footnote 



Ischiadic nerve of frog, 148 et seq. 



JOSEPH, views upon structure of axis- 

 cylinder, 154, 155 



KARYOKINESIS, 246-251 



Karyokinetic spindle, imitation of, 250 

 footnote 



Klein on radiate appearances in proto- 

 plasm, 259 ; on reticular structures 

 in protoplasm, 168 



Kolliker's views on protoplasm, 202 



Kratschmar on reticular structure of 

 jflthalium, 171 



Kraus, theory of protoplasmic move- 

 ment, 27 footnote 



Ku'hne on the fluid nature of proto- 

 plasm, 220 



Kunstler, spherular theory of proto- 

 plasm, 184-191 ; on vacuolar 

 membranes, 231 footnote; radiate 

 layer of alveoli figured by, 243 



KupfFer, alveoli round nucleus observed 

 by, 243 ; follicle cells of Ascidin 

 canina, 162 ; observations on egg 

 of Ascidia, 237 ; observations on 

 the structure of the cells of the 

 salivary gland of Periplaneta and 

 on liver cells, 165, 166 



LAMELLAE of fluid, experiments on 



tension in, 323, 324 

 Lamp for microscope, 86 



Lehmann on the physical constitution 

 of jellies, 218 footnote ; explana- 

 tion of movements in oil -drops, 

 66, 67 



Lepocinclis, granules in endoplasm, 91 



Lepus cuniculus, see Rabbit 



Leucocytes, structure of (Schafer), 282 



Leydig, alveolar layer observed by, 

 239 ; clear space round nucleus 

 figured by, 243 ; on blood cor- 

 puscles of Triton, 129 ; on epi- 

 thelial cells of Gammarus, 132 ; on 

 hyaline protoplasm, 263 ; on the 

 hyaloplasm in relation to move- 

 ment, 172, 280-287; on limiting sur- 

 face of protoplasm, 234 ; on the 

 limitation of vacuoles, 228, 229 ; 

 on radiate appearances in proto- 

 plasm, 260 ; views on reticular 

 structures in protoplasm, 172 ; 

 on structure of axis-cylinder, 156 ; 

 on structure of capillaries of 

 Salamander, 144 ; on structure 

 of epithelial cells, 161 



Light, its influence upon streaming 

 movements of foam-drops, 54 



Linseed oil, for producing oil-foams, 

 11 



Lithobius, alveolar layer in testicular 

 cells of, 239 



Litmus solution, experiment with, for 

 proving electrolysis in foam-drops, 

 56 



Liver cells, Kupffer's observations on, 

 166 ; of frog and rabbit, 140-142 



Lwribricus terrestris, epithelial cells 

 from, 134-136; fibrous structure 

 of connective tissue cells, 256 ; 

 ganglion cells of, 145 et seq. 



MACRO - NUCLEUS of Acineta, 87, 88 ; 

 of Paramcecium caudatum, 90, 91 



Mcdva, protoplasm of, 122 et seq. 



Marchi on structure of ciliated cells of 

 Anodonta, 161 



Mark on radiate appearances in proto- 

 plasm, 259 



Martin, theory of protoplasmic struc 

 ture, 192, 193 



Matrix of protoplasm, Altmann's views 

 on, 196, 199 



Membrane of cell, 240-243 ; of vacuoles, 

 228-230 



Mensbrugghe, explanation of increased 

 movement in oil-drops when heated, 

 79, 80 ; on the tension of thin 

 fluid lamellse, 264 ; theory as to 

 the cause of the movement in 

 oil-drops, 65, 67 



Meshwork shown by microscopic foam, 



