GENERAL SUBJECT. 
Hamm. 17 
[Osborn, H. T\] [See also Chalicotheriidce, Marsupialia, and Didelpliyidce.] 
Pansini, S. Du Plexus et des Ganglions propres au Diaphragme. Arch. 
Biol. ltal. x, pp. 259-266. 
Observations on certain peculiarities in the histology of the phrenic 
nerve and its plexuses. 
Paterson, A. M. On the Fate of the Muscle-Plate, and the Develop- 
ment of the Spinal Nerves and Limb-Plexuses in Birds and 
Mammals. Q. J. Micr. Soc. xxviii, pp. 109-130, pis. vii & viii. 
[Omitted from Zool. Rec. xxiv.] 
This paper is divided into one section on the fate of the muscle-plate, 
and into a second on the growth and development of the spinal nerves. 
The conclusions respecting Mammals are summarized at the end. 
Pavlow, M. [See Ungulata.'] 
Perrier, E. Le Transformisme. Paris : 1888, 12mo, 344 pp., 
woodcuts. 
Pp. 386-340 are devoted to the origin of the Mammalia , and the 
mutual relations of the different orders. 
Piersol, G. A. Uber die Entwicklung der embryonalen Schlund- 
spalten und ihre Derivate bei Saugethieren. Z. wiss. Zool. xlvii, 
pp. 155-189, pis. xvi & xvii. 
An important memoir on the development and homology of the visceral 
clefts and arches of Mammals, in which the conclusions reached are 
stated at length at the end. The chief illustrations are taken from the 
Rabbit. The conclusions are also given in SB. Ges. Wiirzb. 1888, 
pp. 85 & 86. ' 
Poiilig, H. [See Elephantidce.] 
Poulton, E. B. [See Felidce and Ornithorhynchida ?.] 
Probst, J. [See Physeteridoe.] 
Rae, J. Notes on Some of the Birds and Mammals of the Hudson’s Bay 
Company’s Territory, and of the Arctic Coast of America. J. L. S. 
xx, pp. 136-145. 
Observations are given on the habits of Lepus america?ius t L. glacialis , 
and Myodes hudsonicus. 
Ramsay, E. P. [See Marsupialia.'] 
Reichenow, A. Handworterbuch der Zoologie, Anthropologie und 
Ethnologie, vol. v. Breslau : 1888, 8vo, 640 pp., woodcuts. 
Contains notices of many Mammalian genera, of which the first letter 
is L, M, or N. 
. [See also Bovidce.] 
Retterer, E. Note sur la Structure de l’lris chez les Mammif&res, 
C R. Soc. Biol. (8) v, pp. 319-323. 
The main conclusion arrived at is that cellular fibres occur only in the 
sphincter of the iris, which is regarded as a single muscle, and the only one 
in the iris. [See also DebierrE. — Hominidoe, , p. 26.] 
1888. [vol. xxv.] c 2 
