( 46 ) 
fThe Monthly Microscopical 
L Journal, January 1, 1869. 
NEW BOOKS, WITH SHOET NOTICES. 
BibliotJieque des Sciences Naturelles. Anatomie MicroscopiquGj par M. 
Eobin. Paris, 1869. — This, which is intended for a work of 
reference, deals in the present volume with tissues and secretions. 
It is very badly printed in very small type, and though containing 
a good deal of matter under each of the heads it embraces, is on the 
whole rather unsatisfactory to the working microscopist. 
Traits d' Anatomie Descriptif, par M. Ph. C. Sappey. Paris, 1868. — 
Here we have a new edition of M. Sappey's comprehensive trea^ 
tise on Human Anatomy. We notice it because it strikes us 
that, with the exception of Quain and Sharpey's excellent work, it 
deals more fully and fairly with the subject of Human Histology 
than any other book we are familiar with. The illustrations are 
not as numerous as they ought to be, but as cuts intercalated with 
the text, they are well drawn and carefully printed. The figures 
of striped muscular tissue are especially good, and show almost at 
a glance how much of the striation and fibrillation depend on a 
tendency to cleavage in either the transverse or longitudinal plane. 
The chapter on connective tissue is a comprehensive one. 
The Anatomy of Vertebrates, by Richard Owen, F.E.S. Vol. III. 
Mammals. Longmans. — We call attention to the third volume of 
Professor Owen's treatise on the Anatomy of the Vertebrates, 
because it completes the work, and contains a good deal of micro- 
scopic anatomy. The structure, for instance, of the abdominal 
glands, and the development of the teeth, hairs, blood-globules, and 
ovum, are given with the usual accompanying illustrations. We note 
that the author declares his disbelief in the existence of the cell as 
defined in most physiological text-books, and that he explains the 
formation of cells by a process very similar to that advocated by 
Professor Huxley, but which he terms Formifaction. The view 
that Professor Owen takes of the homology of the tooth as a 
tegumentary structure, is that it belongs to the dermal rather than 
to the epidermic layer. Some histologists dispute this, but the 
whole question depends on how we define the epidermis and 
derma. The author evidently regards everything that is placed 
below a structureless membrane (basement membrane) as dermic ; 
and as the tooth is certainly covered with a structureless layer 
(Nasmyth's membrane), he looks on the tooth as dermal. Others, 
however, dispute the identity of this membrane of the enamel with 
the so-called basement membrane of the skin. They look on all 
structures which grow in a direction outwards as epidermic — more 
correctly ecderonic — and all which are developed in an opposite 
line as dermic (enderonic) . The teeth grow from within outwards, 
and hence they would be in this view epidermal, and not dermal 
organs, as Professor Owen classifies them. Another point to which 
