116 
PROGRESS OF MICROSCOPICAL SCIENCE. 
more persistent. It also remains stationary in position, while actively 
moving the parts of the body and writhing like a vinegar eel. Ciliary 
motion is active, and appears as a rapid waving motion especially 
visible along the lateral borders, resembling the rise of heated air or 
the ascent of a flame. 
Microscopical Contents of Recent Journals. 
Revue des Sciences Naturelles, publiee sur la direction de M. E. 
Dubrueil. Tome 6, No. 1.— This, besides various other papers not 
microscopical, contains one which is. It is entitled, “ On the Dia- 
tomacete : a word in favour of their study,” by M. E. Guinard. It is 
an interesting paper, which advances several arguments in favour of 
the study of diatoms. It states among other things that the name 
of Diatom is due to the illustrious De Candolle. 
Archiv fur Mikroskopische Anatomie, herausgegeben von la Yalette 
St. George und W. Waldeyer. Band 14, Heft 1. — This is an excellent 
number of the best microscopical journal in the world. The first paper 
is one interesting alone to the physiologist. It is by Dr. B. Afanassiew, 
of St. Petersburg, and is devoted to the subject of the structure of the 
Thymus gland. It is accompanied by a plate. It, however, does not 
add very much to our existing knowledge. — The next paper is on the 
development of the Myriapoda, by A. Stecker, of Prague. In this he 
first traces the history of the subject so far as it has been given by 
fine memoirs of Newport, of Fabre, and of Metschnikoff; and then he 
gives his own observations which are valuable on the subject of the 
development of lulus. The plate accompanying the paper gives ex- 
cellent coloured drawings, some of them of the entire ovum, and others 
sections of the ova of lulus fasciatus, I.fcetidus, and also of the genera 
Craspedosoma, Polydesmus, and Strongilosoma. — Another contribution, 
of interest only to the human anatomist, is that on the minute 
structure of portion of the reproductive system in man, which is 
accompanied by a plate. — A short note on the connective tissue in 
Cephalopods, by Dr. F. Forster, of Munich, is likewise a good histo- 
logical paper. — An excellent contribution is that of Dr. John Dogiel, 
on the muscles and nerves of the heart in Mollusks. In this the 
author refers esjiecially to Dr. M. Foster and Mr. Dew-Smith’s recent 
paper before the Royal Society on the influence of electric currents 
on molluscan hearts. Then he goes on to point out the minute 
structure of the heart in Pecten, Helix, Salpa, Anodonta, and Aplysia ; 
and he also dwells on the relations of the heart to other parts, more 
particularly dealing with the nervous system. It is altogether a 
most valuable paper. The notice of this number will be continued 
in our next number. 
Botanische Zeitung (March). — -In this L. Celakovsky has a paper 
on Phyllody of the Ovules in Trifolium repens. 
Flora (March). — In this are the following : — F. Buchenau, 
Dehiscence of the Capsule in German Species of Juncus (continued). — 
A. Batalin, Mechanism of Movements in Insect-eating Plants (con- 
tinued). — E. Stahl, On the Importance of the Hymenial Gonidia. 
