QUARTERLY CHRONICLE. 219 
may be formed from an examination of the first number, 
promises to form a very valuable acquisition to microscopic 
observers. It is to be published four times in the year, at 
Bonn, under the editorship of Herr Max Schultze, Professor 
of Anatomy, and Director of the Anatomical Institute in that 
city. Amongst others the following distinguished men of 
science have promised their contributions to its pages—De 
Bary, V. Carus, Ecker, Eberth, Frey, Gegenbaur, Harting, 
Hensen, Klebs, Kolliker, Krohn, Kthne, R. Leuckart, Leydig, 
Pagenstecher, Siebold, Stein, and Weismann. The first 
paper is by the editor, ‘ On an Object-glass adapted to pro- 
ducing Heat, and its application in researches on the Blood.” 
By an ingenious contrivance, described and figured im the 
journal, Professor Schultze has succeeded in constructing an 
object-glass which will heat the object under examination, 
and he has thus been enabled to observe the effect of an 
increase of temperature on blood and other fluids. 
“On the Anatomy and Physiology of the Pulmonifera,” is the 
title of the second paper, which is contributed by Fr. Leydig, 
of Tiibmgen. ‘The first part of this paper refers principally 
to the nervous system and organs of the senses, and minute 
histology of the nerves. Of the ear in these animals, the 
author observes that his imvestigations upon Arion, Limax, 
and Helix, give the following general results :—The capsule in 
all has the form of a shortly stalked vesicle. The short stalk 
is only rendered perceptible by great care in the preparation. 
The short stalk serves to form a connection with the brain, 
and does not lead at all to the exterior of the head, so that 
consequently, when the parts under consideration are not 
altered through pressure or elsewise, the capsule appears 
sharply defined in all its remaining circumference, with a free 
border. The rest of the paper is devoted to the consideration 
of the admission of water into the body, and its delivery 
through the kidneys. The researches of Moquin-Tandon, 
Lister, Rossmassler, Gegenbaur, Draparnaud, and others, on 
this subject are discussed and referred to. 
A paper “On a new kind of Ameboid Cells,” by M. la Valette 
St.George, is amongst the other papers. A short notice of the 
author’s observations was given at the thirty-third meeting of 
the German Naturalists and Physicians, at Giessen, in 1864. 
The cells described, and carefully figured, are observed in the 
immature testes of various animals, the author’s observations 
being made principally on the calf, guinea-pig, and pigeon. 
Very remarkable cells, exhibiting various amoeboid movements 
and provided with one or more nuclei, are described, and the 
effect of the admixture of various fluids on their form and 
structure is also noted. 
