22 Gen. Sub. 
GENERAL SUBJECTS. 
Guignart, L. Sur quelques ph^nomenes de la division du noyau cellu- 
laire. C.R. cii, pp. 1036-1038. 
Gruber, A. [See Reprod.]. 
Nucleus essential to reproduction and regeneration of Protozoa. “ The 
nucleus is the most important and the species-preservative constituent of 
the cell, and to it is justly ascribed the highest importance in the pro- 
cesses of fertilization and inheritance. ,, Conditions of cell-division. 
Heathcote, F. G. The Early Development of Julus terrestris. P. R. 
Soc. xl, pp. 73-76 ; Q. J. Micr. Sci. xxvi, pp. 449-470, 2 pis. 
Inter alia — Long retention of primitive connection of cell with cell, 
and layer with layer. 
Henking, H. Untersuchungen fiber die Entwicklung der Phalangiden. 
Z. wiss. Zool. xlv, pp. 86-175, 4 pis. 
Free origin of nuclei in protoplasm. Inaccuracy of dogma — Omnis 
nucleus e nucleo. Ova without nuclei. Disappearance of nuclei. 
Jaworowskj, A. Multiplication endog6ne des cellules. Arch, slav 
Biol, i, pp. 641-651 ; Ann. Acad. Sc. Cracovie, 1885 ; J. R. Micr. 
Soc. 1887, pp. 48 & 49. 
Endogenous cell-multiplication in reproductive organs of Chironomus, 
mesoderm of chick, developing muscle in fish-embryos, &c. Novel views 
as to cell, nucleus, nucleolus, &c. 
. Nucleus : its Origin and Import. Ibid. 
Jourdan, Et. Structure de la v^sicule germinative du Siphonostoma 
diplochoetos Otto. C.R. cii, pp. 1494-1496. 
Independence of nucleoli and nuclear reticulum. The principal nucleo- 
lus seems able to produce, even when the ovule is in state of repose, a 
number of chromatic bodies which detach themselves into the nuclear 
substance. 
Just, A. Histologie und Physiologie des Flimmer-Epithelium. Biol. 
Centraibl. vi, pp. 123-126. 
Modifications of ciliated areas after injury of pharyngeal and oesopha- 
geal mucosa of frogs. Disappearance, reduction, or fusion of cilia. 
Kossel, A. Weitere Beitrage zur Chemie des Zellkerns. Hoppe- 
Seyler’s Zeitschr. f. Physiol. Chemie x, pp. 248-264. 
Nuclein of yolk of egg differs from nuclein of cell-nucleus in absence of 
nitrogenous bases. Broken up with boiling dilute acids, does not form 
guanin and hypoxanthin. Description of “adenin,” a decomposition 
product of nuclein, intermediate in the formation of hypoxanthin ; found 
iu pancreatic cells, also in other plant and animal tissues. 
Lee, A. Bolles. Carnoy’s Cell Researches. Q. J. Micr. Sci., April, 
1886, p. 481. 
°List, J. H. Die Rudimentzellentheorie und die Frage der Regeneration 
geschichteter Pflaster-epithelien. Wien : large 8vo, 5 pp. 
