226 THE AMERICAN MONTHLY [June 



PERSONALS. 



Geo. M. Lawrence of Warsaw, N. Y., is a dealer in 

 microscopes, accessories, and microscopic objects. 



T. G. Lee, M. D., is professor of Histology and Embry- 

 olog-y in the University of Minnesota, Minneapolis, Minn. 



NEW PUBLICATIONS. . 



The Primary Factors of Organic Evolution. — E. H. 

 Cope, Ph.D. Chicago: The Open Court Publishing Co. 

 In publishing this neat octavo volume of over 500 pp.. Dr. 

 Cope has made quite a valuable addition to the literature 

 pertaining to the problem of evolution of the animal king- 

 dom. The book is divided into three parts, shov^ing the 

 nature of variation, causes of variation and "The Inheri- 

 tance of Variation. " The deductions made are carefully 

 drawn and brought to a final conclusion with infinite ex- 

 actness. Over 100 illustrations embellish the work. 



The Bacillus of Chancroid. — Colombini has been work- 

 ing on this subject, and publishes his results in a pamph- 

 let. He finds that the bacillus of Ducrey and the strepto- 

 bacillus of Unna are one and the same organism, charac- 

 terized b}^ being found in chains, by staining chiefly at the 

 €nds and not in the centre, by being decorlorized by Gram's 

 or Kuhne's method, by the difficulty of obtaining pure 

 culture since a suitable nutritive medium could not be 

 found, and by the rounded ends of the individual bacilli. 

 The best staining agent was methelene blue. Inoculation 

 into animals was uniformly negative. The bacillus is 

 rarely found in bubonic pus. 



Defective Sanitation in Italy. — According to Professor 

 Bodio, of 8,254 communities in Italy, 1,454 have no supply 

 of pure water, and 4,877 no regular sewage system. 



