EEVIEWS. 
Atlas of Histology. By E. Kleij!^, M.D., F.E.S., and E. 
Noble Smith, L.R.C.P., M.R.C.S. Smith, Elder & 
Co., 15, Waterloo Place. 
We have great pleasure in drawing attention to this very 
handsome work, which is certainly the most richly illustrated 
treatise on Histology which has ever been published. It 
occurred to Dr. Klein that by means of the colour-printing, 
which has now been brought to so high a condition of 
perfection, it would be possible to produce illustrations which 
should be practically fac-similes of the delicately stained 
sections which histological students make use of for demon- 
stration and investigation. Accordingly Mr. Noble Smith 
has executed drawings from the choicest preparations made 
by Dr. Klein, which in colour and form present to the eye 
precisely the same effect as the preparations themselves when 
accurately focussed. 
The text accompanying the drawings is by no means a 
mere explanation of the latter, but forms an original treatise 
on Histology, in which Dr. Klein’s views are clearly stated 
in reference to many debatable questions. The medical 
student will also find in this work a surer guide to the 
knowledge of modern Histology than in the older books, 
even those of high authority and reputation, which, on 
account of their antiquity, are too often marred by erroneous 
theory and insufficiency of observation. 
Freshwater Rhizopods of North America. By Joseph 
Leidy, M.D., Professor of Anatomy in the University of 
Pennsylvania, and of Natural History in Swarthmore 
College, Pennsylvania. 
It is, perhaps, somewhat astonishing that a treatise on 
living microscopic organisms should be published, as this 
work is, under the auspices of the Geological and 
