128 © THE AMERICAN NATURALIST. (VoL XXXII. 
Zoology at Johns Hopkins. — The number of the Johns Hopkins 
University Circular for November, 1897, is devoted to accounts of 
biological work done. In the introduction Prof. W. K. Brooks 
gives an outline of the work of the Jamaica expedition of 1897. 
Dr. H. L. Clarke’s paper on the Viviparous Synoptide of the West 
Indies is reprinted from the Zoologischer Anzeiger. Prof. Maynard 
M. Metcalf discusses the follicle cells in Salpa, in which he sup- 
ports the earlier results of Brooks. Dr. George Lefevre has a 
paper on “Budding in Ecteinascidia.” In this form the bud 
development is strikingly like that in Perophora, as described by 
Ritter, except for the peculiar rotation of the inner vesicle, which 
complicates the process in that genus. Dr. F. S. Conant describes 
one new genus (Tripedalia) and two new species of Cubomedusz 
(T. crystophora and Charybdea xaymacana). ‘The paper is more than 
systematic, for it contains notes upon the anatomy and development. 
We understand that Dr. Conant’s notes and drawings made during 
the past summer have been preserved and will be included in the 
full paper, to be published later. Mr. Gilman A. Drew has some 
interesting notes on the embryology of the primitive mollusk Yoldia. 
The most important features in the development are the formation of 
a larval test, only paralleled by that of Dondersia and the formation 
of the central ganglia from the walls of invaginations. Dr. E. A. 
Andrews describes some spinning activities of the polar globules in 
echinoderms, mollusks, and nemertines, phenomena to which attention 
has but recently been called. 
BOTANY. 
Botanical Observations on the Azores,' by William Trelease. — 
During the summers of 1894 and 1896 Professor Trelease, Director 
of the Missouri Botanical Garden, made two excursions to the 
Azores. By his friends it was generally supposed that these jour- 
neys were rather in the nature of well-earned vacation trips of a 
man whose productive research work and arduous executive duties 
must call for occasional relaxation. It is accordingly a matter of 
some surprise to see as a result of these trips a stout, closely 
printed, and excellently illustrated report, including not only a care- 
ful compilation of the work of others, but hundreds of entries of 
1 From the Eighth Annual Report of the Missouri Botanical Garden, issued 
Sept. 9, 1897. 
