574 



THE QUARTERLY REVIEW OF BIOLOGY 



though we hope not. It is, in its magni- 

 tude and in the lavishness of its produc- 

 tion, a truly colossal piece of cytological 

 research. The plates will gladden the 

 hearts of those who sigh sentimentally for 

 the good old days of the Journal of Mor- 

 phology, when we had such lithographic 

 plates as were plates ! 



The work was in the main ready for 

 publication before the war. It only now 

 appears. One result is that the later 

 reading to bring it up to date is not well 

 correlated with what has been done 

 before. Somehow the whole book gives 

 one the impression that the world's 

 cytological knowledge and viewpoint 

 have gone ahead faster than Prof. Vej- 

 dovsky has. He has two pet theories, 

 with neither of which are cytologists 

 nowadays completely in accord. One is 

 that the acrosome is derived from "nuclear 

 liquid;" the other is that Golgi bodies 

 are a "mitotic apparatus." In spite of 

 all this the book represents an enormous 

 amount of careful observing, and every 

 cytologist will wish to have it in his 

 library. 



ON ROUS, LEUCOTIC AND ALLIED 



TUMORS IN THE FOWL. A Study in 



Malignancy. 



By J. P. McGowan. 



H. K. Lewis and Co., Ltd. 

 10 shillings net London 



5§ x 8f ; vii + 99 

 The author holds that leucosis of fowls 

 (not defined in the text, but apparently a 

 designation for tumors consisting of cells 

 in the leucocytic series) and the Rous 

 tumor No. i are identical pathologic 

 entities, both local manifestations of a 

 disease of the reticulo-endothelial system. 

 The evidence is predominantly histo- 

 logical, consisting in the identification by 

 the author in sections from both condi- 



tions of cells belonging to the lineage of 

 the hemopoietic system. An explanation, 

 hypothesis out of whole cloth, as to the 

 etiology of the tumors is presented. 



Those acquainted with the contro- 

 versial nature of all the work involving 

 the microscopic identification of primitive 

 blood cells will be dubious of the conclu- 

 siveness of this sort of scientific labor. 



There is a discussion of melanomata in 

 fowls, and a review of recent work on the 

 etiology of tumors, but no index. 



ANNALS OF THE PICKETT-THOMSON 

 RESEARCH LABORATORY. Vol. Ill 

 (Containing a Historical Survey of Researches 

 on the Streptococci). 

 £ns. ($10 in America) 



Bailliere, Tindall and Cox, London 

 Williams & Wilkins Co., Baltimore 

 8| x ii ; vi + 316 (paper) 



These annals are issued irregularly. 

 Each volume contains about three hundred 

 pages of text, and a large number of plates 

 comprising three hundred to four hundred 

 microphotographs of bacteria. They are 

 devoted mainly to bacteriology, proto- 

 zoology, biochemistry, and to recording 

 photographically the whole range of 

 bacteria and protozoa. 



This is the first of two volumes which 

 together are to deal comprehensively with 

 the Streptococcus groups in general, while 

 the subsequent volume will consider the 

 pathogenic varieties. There are chapters 

 on staining, cultivation, cultural charac- 

 teristics, biochemical reactions, virulence, 

 immunity reactions and others, with 

 special reference to the importance of 

 differential media and microphotography 

 as an aid to classification and identifica- 

 tion. Fifty-seven illustrative plates are 

 appended, and a bibliography and index 

 are included. 



