QUARTERLY CHRONICLE OF MICROSCOPICAL 
SCIENCE. 
Histology. 
Textbooks.—The recently-issued fourth part of Stricker’s 
‘Handbook of Histology’ contains the following articles— 
the Mammary Gland, by C. Langer ; the Genital Organs, by 
E. Klein; the Spinal Chord, by J. Gerlach ; the Brain, by 
Th. Meynert; the Sympathetic Nervous System, by S. Mayer ; 
the Organs of Taste, by T. W. Engelmann; and the Ear, 
by J. Kessel. 
Rindfleisch’s ‘Manual of Pathological Histology’ has 
appeared in a second edition. 
Migration of Cells—Dr. Caton, of Liverpool, has published 
in the ‘ Journal of Anatomy and Physiology,’ for November, 
1870, some further “contributions to the cell migration 
theory,” made with the help of the apparatus described by 
him in this Journal (July, 1870). He has arrived at the 
conclusion that migration is a very common phenomenon in 
Tadpoles, and may occur quite independently of inflammation. 
In fish no migration could be observed. ‘The paper is illus- 
trated by an interesting plate, giving representations of different 
stages in the passage of leucocytes out of the vessels. 
Bone. Formation of Lacune and Canaliculii—A paper 
with this title, by Dr. Lionel Beale, appears in his ‘ Archives 
of Medicine’ (No. 17, vol. v, p. 38), directed against the views 
of several German histologists, notably Kolliker and Virchow. 
In opposition to the latter, Dr. Beale denies that the bone- 
cells become stellate, or that the canaliculi are filled with the 
extension of protoplasmatic processes from them. The bone- 
cells are always simple and usually oval ; while the canaliculi 
are simply gaps in the fundamental substance. These views 
appear to be substantially the same as those promulgated by 
the author in his lectures on the tissues, published in 1861. 
Cartilage and Ossification.—-Professor Neumann (‘ Archiy 
der Heilkunde,’ xi, 5, p.414, 1870) has examined the structure 
of normal cartilage and its ossification. He denies altogether 
the existence of cavities commonly supposed to surround normal 
1 By Joseph Frank Payne, M.B. 
