+ 
642 Scientific Serials. [September, 1878. 
THE QUARTERLY JOURNAL OF MıcroscorIcaL ScienceE.— july. 
Mr. C. O. Whitman, of Boston, contributes an elaborate and 
lengthy essay on the embryology of Clepsine, a leech-like worm. 
The article is ohe of the most important contributions in this 
difficult field of research. It treats of the origin and growth, of 
the egg, its impregnation and mode of deposition, of the changes 
preliminary to and during cleavage, of the gastrula and “neurula” 
stages, comprising the growth of the germ-layer and the con- 
comitant invagination of the pharyngeal clefts, of the origin of the 
nerve-chain, segment cells, segmental organs and segments, of the 
origin and de evelopment o of the alimentary canal and circulatory 
apparatus. The author believes that the “neurula” of the chick, 
or of. the fish, belongs to the same type as that of Clepsine, and 
the concluding remarks on the identity of type, in this phase, o 
worms and vertebrates, are of a good deal of interest. The re- 
searches were made in Prof. Leuckart’s laboratory. 
BULLETIN OF THE’ AMERICAN GEOGRAPHICAL SociETy.—No. 2. 
1878. Japan: Geographical and Social, by Rev. W. E. Griffis. 
The So-called Celtic Monuments of Brittany, France, by W. 
Wh Ve Hawkes, LL:D. Recent Journey of Exploration across 
he Continent of Australia; its Deserts, Nese Races and Natural 
History, by Mr. Jess. Young, PRS.) ERAS. 
Tue GEOGRAPHICAL Macazine.—July. The Vilayet of the 
Islands of the White Sea (with a map showing the administrative 
divisions). The Country of the White Horde of Kipchak, by H. 
. Ho . Origin of the Ordnance Trigonometrical Survey, 
by S. Mossman. The Marine Survey of India, 1876-77. 
THE AMERICAN JOURNAL OF SCIENCE AND ArtTs.—August. 
Forest Geography and Archeology, by A. Gray. Structure and 
Origin of Mountains, by LeConte. Occurrence of a solid 
hydrocarbon in the eruptive rocks of New Jersey, by I. C. Rus- 
‘sell. : 
PoruLaR Science Review.—July. get globator, by A. W. 
Bennett. The Extinct British Wolf, by J. E. Hasting. On the 
Radiolaria as an Order of the Protozoa, p G. C. Wallich. How 
were the Foces of England | deposited : ? by J. S. Gardner. 
THE Gasiearca. MaGazineE.—July. On the possibility of 
eer in the latitudes of places on the earth’s surface, by 
isher. 
