42 Gen . Sub . 
I. GENERAL SUBJECTS. 
The new views of the cell ; Waldeyer (522). — Nsegeli’s experiments 
on living cells ; Smith (478). — Specific character, “ altruism,” &c., of 
colls ; Hansemann (214). — Oligodynamic phenomena ; Nageli (367). 
“Elementary organisms,” their relation to the cell ; Altmann (5). 
Import of nucleus : Microscopic vivisection of the cell. A portion of 
the necklace-like nucleus is essential if a fragment is to regenerate the 
whole ; it is the nucleus which gives the cell its physiognomy ; but the 
behaviour of a fragment shows that each particle of protoplasm has “ its 
own independent Psyche,” and that the nucleus is not the psychical centre 
of the cell ; Gruber (191). 
Selection of stains by the cell-elements, the nuclein substances of the 
nucleus select the basic colouring matters from a mixture, the albuminoid 
substances of the cytoplasm select the acid stuffs ; Lilienfeld (315). 
Chemical physiology of the animal cell ; Halliburton (213). 
Cytological differences in homologous organs ; Gilson (184). 
Process of cellular excretion ; van Geiiuchten (181). 
Interaction between the cytoplasm and nucleus ; Roux (437). — 
Reciprocal relations of cytoplasm and nucleus as seen in merotomy of 
ciliated Infusorians ; Balbiani (15). — Functional independence of 
cytoplasm and nucleus ; there is some independence between the life of 
the protoplasm and that of the nucleus. Thus the former is only mani- 
fested in the presence of oxygen ; the latter goes on in a medium 
insufficient to sustain the active life of the protoplasm. There is much 
division of labour in the cell, its life is a complex resultant ; Demoor 
(128, 129). 
Chemical nature of cytoplasm and nucleus ; Zauharias (558). 
Intercellular bridges ; Heidenuain (225). 
Nerves cells, inter relations ; Dogiel (133). 
Muscle cells, fine structure of ; Butsciili (81). 
c. Nucleus, Nucleolus, Gentrosomata . 
Structure of nucleus ; Altmann (4). — Specific nuclear structure in 
different tissues and other facts demonstrated by the Lysol method; 
Reinke (415). 
Nuclein acid ; Kossel (299). 
Archoplasm and centrosomes, methods ; Hermann (237). 
Disposition of archiplasm in pigment cells ; Zimmermann (561). 
Centrosomata : Eismond (144). — In the absence of centrosomes in 
incipiently parthenogenetic ova of Mammals, the chromosomes become 
centres of attraction and orientation for the achromatin filaments ; 
Henneguy (227). 
Homology of the Oentrosome : Microsome, centrosome, zwischenkorper, 
cell-plate, and polar microsomes, all belong to the same category of cyto- 
plasmic material. The centrosome is not a unique organ, but it is identical 
