QUARTERLY JOURNAL OF MICROSCOPICAL 
SCIENCE. 
Histology. Blood. — W. S. Savory, in Proc. Roy. Soc., April, 
1869, gives reasons for believing that the nucleus in the Red 
Corpuscles of Oviparous Veriebrata is produced by post-mortem 
change, and is not present when the corpuscle is living. If 
blood be rapidly conveyed from a frog or reptile, and placed 
beneath the microscope, the corpuscles may be seen free from a 
nucleus which gradually makes its appearance by a segrega- 
tion, as it were, of the coloured matter. In living Amphibia 
the corpuscles may be observed, according to Mr. Savory, 
quite devoid of nuclei. 
Alexander Golubew describes, in Schultze’s Archie, 
vol. v, Part I, the structure of the Walls of the Capillaries 
in the Frog. He observes spindle-shaped bodies which, when 
stimulated, change their form, becoming thicker, so as to 
diminish the calibre of the capillary, even completely 
contracting it in some cases. His observations agree well 
with those of Lister, who attributed a contractile power to 
the capillaries, independent of nervous stimulus, in his 
researches on the frog. 
On the Action of Salts of Quinine on the Movements 
of Protoplasm. C. Binz. Archie fur Mikroskopische 
Anatomie, Bd. iv, heft 3, 1868. — Dr. Bing asserts that 
weak solutions of sulphate of quinine have no influence on 
the changes in form which take place in the red corpuscles of 
the blood. On the other hand, this agent acts as a poison on 
Amoeba and Actinophrys, and immediately arrests the amoeboid 
movements of the white corpuscles of the blood. 
Nerve. — On the Terminal Apparatus of Nerves of Taste. 
By Ludwig Letzerich. Virchow's Archie, November, 
1868. — This observer states that the nerves of taste in cats 
and oxen terminate in flattened vesicles, from -which pro- 
cesses are sent inwards, and also outwards towards the upper 
surface of the mucous membrane of the tongue. These 
vesicles exist in the gustatory papillae, and at the hinder part 
of the tongue, w here the epithelial layer is thin, are placed 
