274 
PROGRESS OF MICROSCOPICAL SCIENCE. 
which covers more than five pages, is arranged in sections correspond- 
ing to the following parts : brain as a whole ; cerebrum, cerebellum, 
cerebral ganglia ; Crus Cerebri, Pons Varolii, and medulla oblongata. 
In the first chapter — that devoted to the brain — the lecturer on anatomy- 
will find all that is really known of the structure of the brain, and of the 
origin of the cerebral nerves traced much further than they are given 
in our standard works on Anatomy and Physiology. He will observe 
too that many novel points are suggested in regard to those marvellous 
organs, which even yet are a puzzle to the most patient student, though 
infinitely less so than they have been even of late years. In regard to 
the illustrations, we can only award them the very high praise which 
they certainly merit. They have less of the Artist and more of the 
Anatomist about them than any which the work contains, and they 
have the further merits of being both numerous and novel. We 
think the author has done well to mention, as he does with praise, the 
names of his draughtsmen, Herr Dr. Carl Heitzmann, and Herr Adolf 
Gohre, of Vienna, whose labours most assuredly merit the greatest 
commendation. 
The book as a whole is a very satisfactory resume of the latest 
research as it is taught in the best schools of Germany, and it is 
one which we welcome accordingly in the most thorough fashion. 
We hope soon to have the third volume on our table, and meanwhile 
our best thanks are due to Mr. Power for the very lucid text which he 
has given us, and to the publishers — whoever they may be — who have 
turned out a handsome and creditable volume. 
A. E. 
PROGRESS OF MICROSCOPICAL SCIENCE. 
Pathological Microscopic Specimens. — The ‘British Medical Journal 7 
states that a number of the above were exhibited at the meeting 
of the Association. Dr. J. Batty Tuke exhibited microscopic sections 
illustrating miliary sclerosis of the brain, colloid degeneration, fuscous 
degeneration of brain cells, &c. Dr. Herbert C. Mayo exhibited 
microscopical sections of brain structure in health and disease ; and 
Dr. J. Thompson Dickson exhibited some sections illustrating general 
paralysis, explaining that the case was one in which no mental 
symptoms had occurred. 
The Embryology of Terebratulina. — Mr. Edward Morse, who is 
known to be an authority on this group of animals, has just published 
in ‘ Silliman’s Journal’ (October, 1872), a preliminary account of the 
above, the full account being reserved for the Boston Society of 
Natural History. For several years past the author has made a special 
study of the Brachiopoda. The publication of the results of these 
investigations has been purposely delayed, till he could incontestably 
demonstrate the genital nature of the Cuvierian hearts, so plainly 
