830 THE AMERICAN NATURALIST. [Vor. XXXIV. 
Hesperale yuccefolia, in the form which has been called A. Engel- 
manni, is figured in Curtis’s Botanical Magazine for July. 
A well-illustrated revision of the species of Bromus occurring 
north of Mexico, by C. L. Shear, is published as Buletin No. 23 of 
the Division of Agrostology of the United States Department of 
Agriculture. 
The folklore and history of the yew form the subject of a series 
of articles in the current numbers of Prometheus. 
Professor Bessey contributes a revision of the tribes and a 
rearrangement of the genera of North American Diatomacez to 
Vol. XXI of the Transactions of the American Microscopical Society. 
The dedication of Vol. LVII of ZZe Garden is to Sir William Tur- 
ner Thiselton-Dyer, and is accompanied by a short biographic sketch 
and an excellent portrait of the director of the celebrated Kew 
Gardens. 
A portrait of Franchet accompanies Nos. 4 and 5 of the Buletin 
de la Société botanique de France of the current year. 
A portrait of the late Professor D. C. Eaton forms the frontispiece 
of the July number of The Fern Bulletin. 
PALEONTOLOGY. 
Fossil Cephalopods in the Timan. — Professor Holzapfel’s’ 
work should be read in connection with a recent memoir by Dr. 
J. M. Clarke (“Naples Fauna," Ann. Rep. N. Y. State Geol., 1898), 
on the Intumescens fauna in America. In Dr. Clarke’s work we 
see the fauna after it had immigrated to American waters, and in 
Professor Holzapfel’s we see the fauna nearer to its origin. In New 
York the genus Manticoceras seems to be the prevailing one; 
in the Timan Gephyroceras is preéminerit, while it is lacking in 
New York, but represented by Probeloceras Clarke. Those forms 
assigned by Clarke to Gephyroceras seem to agree with Timanites. 
The Intumescens fauna of the Timan agrees closely with that of the 
Urals, a number of species being identical. 
! Holzapfel, E. Die Cephalopoden des Domanik im südlichen Timan, Mém. 
Comité Géol. (Russie), T. xii (1899), No. 3. 
