Contents:
Bryozoa, paleozoic, Revision of, pt.1, ctenostomata; by E. O. Ulrich and R. S. Bamler.
Cyprinoirt fish, hemibarbns Joitenl, new, from Pel Ho, Tientsin, China, Description of; by D. S. Jordan and E. C. Starks.
Dinosaur trachodon annectens: by F. A. Lucas.
Fishes, On collection of, made by Alan Owston in deep waters of Japan: by D. S. Jordan and J. O. Snyder.
Hares and their allies, Classification of [with bibliography]; by M. W. Lyon, jr.
Notes.
Pelican fish, New, from the Pacific: by B. A. Bean.
Smithson, James, Removal of remains of; by S. P. Langley.
Terrapin, yellow-bellied. Notes on breeding habits of; by H. M. Smith.
Title-page, contents, and index to v. 45.
Transit observations, Method of avoiding personal equation in; by S. P. Langley.
Umbras. Remarkable genus of fishes: by Theodore Gill.
Unakite, New occurrence of, preliminary paper; by W. C. Phalen.