INDEX 



ABBE condenser, use of, for investigat- 

 ing protoplasmic structures, 86, 

 178 



AcMya, movement of granules in (Na- 

 geli), 321 



Acineta sp., structure of, 87, 88 



Acinetan (Tokophrya), tentacles of, 88 



Actinophrys sol, protoplasm of, 93, 94 



Actinosphcerium, protoplasm of, 93, 94 



Adherent drops and amoeboid move- 

 ment, 293-296 



Adhesion a cause of protoplasmic 

 movement (Rindfleisch), 290 ; in 

 relation to amoeboid movement, 

 293-296 



JEthalium septicum, protoplasm of, 

 111-116 ; observations of Reinke 

 and Rodewald upon enchylema of, 

 170, 171 



Aggregate condition of protoplasm, 

 220-227 ; of fibrous protoplasm, 

 257 



Air -bubbles in gum solution, optical 

 phenomena shown by, 29 



Albumen, nature of, 216-219 ; soap 

 (Quincke), 306 ; spheres of Tha- 

 lassicolla, 92 



Alcohol, drops of water retreating 

 from, 296-305 ; iodine, for fixa- 

 tion, 90 



Alkalinity of enchylema, 310 ; Reinke 

 and Rodewald's experiments, 170, 

 171 



Almond oil, for preparing oil-foams, 

 13 



Alterations in volume of foam-drops, 

 38-41 



Altmann's views on the structure of 

 protoplasm, 195-200 



Alveolar layer in oil-foams, 32-36 ; in 

 protoplasm, 236 - 240 ; physical 

 explanation of, 33 ; fluid nature 



of, in oil-foams, 35, 36 ; in rela- 

 tion to cuticles and cell-mem- 

 branes, 240-242 ; layer similar to, 

 round vacuoles in oil-foams, 36 

 (see under Radiate Layer infra) ; 

 in Acineta, protoplasm, 87, nu- 

 cleus, 88 ; in plasmodia of ^Etha- 

 lium, 114, 115 ; in Amoebae, 107, 

 108 ; in axis-cylinders, 150 ; in 

 Bacteria, etc., 118-122 ; in blood 

 corpuscles (frog), 128; in Chilo- 

 monas, etc., 91; in ciliated cells, 

 etc., of Hydatina, 133, 134 ; in co- 

 agulated colloids, 216 ; in epithel- 

 ial cells (Lumbricus), 135 ; in 

 ganglion cells, 146 ; in liver 

 cells, 141, 142 ; in drops of 

 protoplasm of Miliolidce, 95 ; in 

 ova of Barbus fluviatilis and 

 Dreissensia, 127, of Hydatina, 

 125, and of Sphcerechinus, 126 ; 

 in Pelomyoca, 117 ; in Vorticella, 

 88 



Alveolar nature of colloids, 216-219 ; 

 of protoplasm, 219 et seq. ; of 

 hyaline protoplasm, 262-266 

 protoplasm, internal displacements 



in, 323-325 



theory of protoplasm in relation to 

 movement, 267 et seq. 



Alveoli of microscopic foams, pro- 

 perties of, 24, 25 ; size of, 31 ; in 

 oil-foams, arrangement of, 31, 37 ; 

 elongation of, causing fibrous ap- 

 pearances, 45 ; bursting of, under 

 electricity, 26 ; vertical position 

 of, in lamellae of oil -foam, 38 ; 

 marginal layer of, see Alveolar 

 Layer ; of protoplasm, contents of, 

 310; size of, 93, 95, 127, 142, 

 146, 148, 176, 238, 341 ; in 

 jEthalium, 115 ; Kunstler's views 



