SPECIAL SUBJECTS. 
Gen. Sub. 25 
Kuppfer, C. Die Entwicklung von Petromyzon planeri. Arch. mikr. 
Anat. xxxv, pp. 469-558, 6 pis. 
°LoEWENTHAL, N. Die Befruchtung, Reifung, und Teilung des Eies 
von Oxyurus ambigua. Month. Int. J. Anat. Hist, vii, pp. 341-874, 
375-385, 2 pis., & pp. 469-514, 2 pis. 
Mark, E. L. Studies on Lepidosteus. Bull. Mus. C. Z. xix, pp. 1-127, 
9 pis. 
Inter alia , observations on the egg-membranes, with a historical and 
critical review of the literature on the primary egg-membranes and the 
micropyle in fishes. Both egg-membranes are radially striated. There 
is a single micropyle, with a funnel and a capal. The granulosa of the 
mature ovarian ovum is a single layer, except at the funnel. The homo- 
logue of the zona radiata is found in representatives of all groups of fishes. 
It is produced by the ovurp. The evolution of the micropylar apparatus. 
McIntosh, W. C., & Prince, E. E. Development and Life-history of 
Teleostean Food- and other Fishes. Tr. R. Soc. Edinb. xxxv, 
pp. 665-946, 28 pis. 
Much in regard to the ova. 
Minot, C. S. The Concrescence Theory of the Vertebrate Embryo. 
"Am. Nat. xxiv, pp. 501-516, 617-629, & 702-719, 22 figs. 
Morgan, T. H. The Origin of the TesLCells of Ascidians. J. Morph, 
iv, pp. 195-204, 1 pi. 
Paladino, G. I ponti intracellulari tra l’Uovo Ovarico e le Cellule 
Follicolari, o la Formazioue della ^ippa Pellpcida. Anat. Anz. pp. 
254-259, 1 fig, 
*Petipierre, L. Ueber das Eindringen von Granulosazellen durch die 
Zona Pellucida njenschlicher Eier. Inaug. Diss. Bern : 8vo, 
27 pp., 3 figs. 
Prince, E. E. [See McIntosh, W. C.] 
Ritter, R. Die Entwicklung der Geschlechtsorgane und des Darmes 
bei Chironomus. Z. wiss. Zool. 1, pp. 408-427, t pi. 
Rossi, U. Contribute* alia Matura,?ione dpUe Uova degli Amfibii. Anat. 
Anz. pp. 142 & 143, 
° . Sulla Destruzione degli Spermatozoi negli organi genitali interni 
feminali del Mus musculus. Month. Int. J. Anat. Hist, vii, pp. 
196-203. 
Salensky, W. Beitrage zur Embryonal-entwicklung der Pyrosomen. 
Zool. Jahrb. iv, pp. 424-477, 3 pis. 
A chapter on oogenesis. 
Schimkewitscii, W. Sur la Signification dos Cellules Vitellines choz los 
Trachytes. Zool. Anz. xiii, pp. 399-404, 2 figs. 
Tolger, B. Die Richtungskorperchen von Balanus. T. c. pp. Q07-609. 
