PROCEEDINGS OF SOCIETIES. 
325 
Mr. Ward with Mr. Bevington : Raspberry seed, and sections of 
various charred woods from the lake dwellings of Eohenhausen. 
Donations to the Library and Cabinet since October 4, 1876 : 
From 
Nature. Weekly The Editor. 
Athenseum. Weekly Ditto. 
Society of Arts Journal Society. 
Journal of the Linnean Society. No. 86 Ditto. 
American Journal of Microscopy. No. 10 Editor. 
Bulletin de la Societe Botanique de France Society. 
Quinology of the East Indian Plantations. By John E. Howard. 
1869 and 1876 AMtlior. 
Proceedings of the Literary and Philosophical Society of Man- 
chester. Vol. XV Society. 
Memoirs of ditto ditto. Vol. V. Ditto. 
Four Slides of Sections of Coal Fossils Mr. Norman. 
The Eev. John Spaven, of Windermere, and Dr. William Morris, 
of Sydney, N.S.W., were elected Fellows of the Society. 
Walter W. Eeeves, 
Assist. -Secretary. 
Medical Micboscopical Society. 
Friday, October 20, 1876.— F. T. Payne, Esq., President, in the 
chair. 
Superficial Gangrene of Skin. — A specimen of this was exhibited 
under the microscope by Mr. Golding-Bird, and he pointed out that 
the section having been taken at the junction of the black or truly 
gangrenous part with the red, inflamed skin beyond, the difference be- 
tween the two states was histologically, that in the former the papillae 
were partially or entirely destroyed, and the epidermis was more com- 
pletely separated from the corium than in the latter, where the papillae . 
remained and the earliest formation of a vesicle was well seen ; the 
cuticle was separated in isolated patches by serum that was now dis- 
tinctly visible, having been coagulated by the reagents used. Through- 
out the specimen inflammatory cell infiltration was plainly seen. 
Dr. Pritchard exhibited and explained an ingenious form of micro- 
scope by which the circulation of the blood in the frtenum of the 
human tongue could be watched. The essentials of the instrument 
were a tube carrying an ocular and a No. 2 (Hartnack) objective, and 
to the end of the latter was fitted a brass cap, from which a hollow rod 
of metal, of the size of a crowquill and about an inch long, projected. 
The cap was centrally perforated. The narrow end of an ordinary 
ear speculum was presented to the extremity of this small tube and 
held adjacent to it by a wire clip, and so arranged that microscope 
tube, metallic rod, and ear speculum had each its axis in the same 
straight line. To use it the fraenum linguae was placed between the 
hollow rod and the speculum (this latter condensing the light), and 
when focussed the circulation could be watched. 
Diffuse Cancer of the Liver. — Dr. Goodhart showed specimens 
taken from a child aet. 10, wlio had during life all the symptoms of 
2 A 2 
