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NEW BOOKS, WITH SHORT NOTICES. 
The Anatomy offJie Lymphatic System. By E. Klein, M.D., Assistant 
Professor at the Laboratory of the Brown Institution. II. The Lung. 
Smith and Elder, 1875. — The reason why Dr. Klein's book has been 
unnoticed for so long a period is simply this, that it has been placed 
in the hands of one gentleman whose illness rendered his reviewing 
the work absolutely out of the question; and then it passed to a 
second individual, who has unfortunately left town without per- 
forming his labours. And these circumstances, although they may 
appear somewhat strange to one unacquainted with the difficulty of 
finding the person who can review a histological volume, will not at 
all astonish those who are informed on the subject. 
The work now before us is the second volume of Dr. Klein's 
treatise on the Lymphatic System, the first volume of which, it will 
be remembered, we noticed at some length. And, in the first place, let 
us say of it that it is almost without exception the finest essay on a 
special branch of microscopic anatomy that has been published in this 
country for many years. Its illustrations are most numerous, and 
are of course of such an excellence that we must confess that they are 
not the work of an English house, but that they have been executed at 
Leipsic. And, from our experience of English microscopical work, 
we cannot say that we have been ever satisfied with the figures accom- 
panying it, except in the case of Dr. Beale's works, which were 
executed, as every histologist is aware, under peculiar circumstances. 
Dr. Klein's drawings are, however, most admirably represented. 
The present work, which consists of upwards of 70 pages of large 
8vo matter, deals with the microscopical structure of the healthy and 
diseased lung ; but of course it has only to do with special portions of the 
histological arrangement. Thus it treats of the endothelium and 
also the matrix and the lymphatic system of the pulmonary pleura ; 
then with the lymphatic system of the bronchi, and also with the 
perivascular lymphatics of the proper lung-tissue. In its pathological 
portion the author speaks of the pleura in acute and chronic inflam- 
mation, of changes in the lung proper in artificial tuberculosis of 
guinea-pigs, and finally of acute tuberculosis in man. And on all 
these subjects he has dealt fully and fairly with work that has been 
done before, and he adds a considerable amount to our knowledge 
from his own observation. And of the latter it must be said that the 
researches, especially the pathological, appear to have been most 
carefully carried out. Of course there are points in Dr. Klein's work 
which are still open to discussion, and we think that no one would be 
more willing to admit this than the author himself; and in this 
respect we may indicate two questions which may be raised : first, as 
to whether the subpleural lymphatics stand in direct open connection 
with the pleural cavity ? and the second is, as to whether some of the 
so-called lymphatics may not be merely connective-tissue channels 
which have a certain communication with each other and no connec- 
tion whatever with the undoubted lymphatic channels? However, 
these are merely queries. The general character of the work which 
