SPECIAL SUBJECTS. 
Gen. Sul. 19 
Balbiant, E. G. Recherches experiraentales sur la merotomie des 
Infusoires cilics. Contribution tl l’<jtude du role physiologique du 
noyau cellulaire. I Partie. Rec. Z. Suisse, v, 1, pp. 1-72, 2 pis. 
^Bokorny, Th. Ein chemischer Unterschied zwischeti lebendem und 
totem Protoplasma. J. Ber. Yer. Rheiupfcilz, 1888, p. 143. 
. [See Lckw, O.J 
Boveri, Tii. Zelleu Studien. Heft. I. Die Bildung der Richtungs- 
korper bei Ascaris megalocephala und Ascaris lumbricokles. Biol. 
Centralbl. viii, 1, pp. 17-19 ; cf. 1887. 
Cf. Review of Boveri’s work by O. Zacharias. 
Brinck, J. Ueber synthetische Wirkung lebender Zellen. Z. Biol, vii, 
4, pp. 453-474. 
"Brown, F. W. A Course in Animal Histology, ii. Cells and Inter- 
cellular Substances. Microscope, viii, pp. 113-116, 145-147, 177-180, 
201-203, & 244-246. 
Bruyne,C. de. Contribution l’etude de la vacuole pulsatile. Bull. 
Ac. Belg. xv, 5, pp. 718-749, 1 pi. 
See Protozoa. No communication with exterior, not excretory, pro- 
bably respiratory and circulatory, with nutritive contents. 
Butsciili, 0. Mussen wir ein Wachstum des Plasmas durch Intus- 
susception annehmen? Biol. Centrabl. viii, 6, pp. 161-164. 
New particles may be apposed to fine threads of the plasmic network. 
<!i Ciiabry, L. Production exp^rimentale de la segmentation cellulaire 
bornde au noyau. C.R. Soc. Biol, v, pp. 589-591. 
^Conn, H. W. Cells and Protoplasm. Am. Micr. J. ix, pp. 147-149. 
Cuenot, L. Sur le developpement des globules rouges du sang. C.R. 
cvi, pp. 673-675. 
Dallinger, W. H. The President’s Address. J, R. Micr. Soc. 1888, 
pp. 177-185. 
Putrefactive organisms. The constancy of life-cycles. 
Errera, L. Ueber Zellenformen und Seifenblasen. Biol. Centralbl. vii, 
22, pp. 728-731. (60 Yers. deut. Naturf. 1887.) 
Mechanics of the cell. Cellular statics compared with those of soap- 
bubbles. At the moment of appearance the cell-membrane is extremely 
thin, plastic, and changeable. Like similar fluid lamell®, it tends to 
assume that form which would be taken by a weightless fluid lamella 
under the same conditions, and to exhibit a minimal surface and constant 
curvature. Thirteen general conclusions. 
° . Mouvement protoplasmique et tension superficielle. Bull. Soc. 
Belg. Micr. 1887-88, pp. 43-46. 
Frommann, C. Ueber Beschalfenheit und Umwandlungen der Membran, 
des Protoplasma, und des Kerns von Pflauzenzellen. Jen. Z. Nat. 
xxii, pp. 47-174, 5 pis. 
Dealing with vegetable cells, but of general import. 
1888. [vol. xxv.] n 5 
