1122 The Microscope. 



BOOK REVIEWS, 



Prize Essays of the American Public Health Association, Second 

 Edition, cloth, pp. 198 ; price $1.00. 



These essays are the outcome of prizes ofFered by Mr. Henry 

 Lomb, of Rochester, N. Y., through the American Health Associ- 

 ation. The motive that led to the offer of the prizes was the desire 

 to obtain the best views on several subjects pertaining to public 

 health and hygiene, so written that they would gain the interest of 

 the public at large, and thus encourage a better knowledge of and 

 wider interest in the prophylaxis of disease. The subjects have 

 been singularly well chosen and are, with their writers, as follows: 



I. " Healthy Homes and Food for the Working Classes," by 

 Victor C. Vaughn, M.D., Ph. D., Professor in University of Michigan. 



II. " The Sanitary Conditions and Necessities of School-Houses 

 and School-Life," by D. F. Lincoln, M.D., Boston, Mass. 



III. "Disinfection and Individual Prophylaxis Against In- 

 fectious Diseases," by George M. Sternberg, Major and Surgeon 

 U. S. Army. 



IV. "Preventable Causes of Diseases, Injury and Death in 

 American Manufactories and Workshops, and the best Means and 

 Appliances for Preventing and Avoiding them," by George H. 

 Ireland, Springfield, Mass. 



In the introduction we read: " That these essays may be placed 

 in the hands of every family in the country is the earnest desire of 

 the Association, as well as the heartfelt wish of the public-spirited 

 and philanthropic citizen whose unpretentious generosity and un- 

 selfish devotion to the interests of humanity have given us these 

 essays ; but the financial inability of the Association renders it im- 

 possible to distribute them gratuitously, therefore a price covering 

 the cost has been placed upon these publications." 



This work should be in the hands of everyone interested in 

 public health and hygiene. The four essays can be purchased in 

 pamphlet form for 30 cents, or in a neatly bound volume for $1.00 

 or 65 cents. 



Some New and Rare Diatoms by Walker and Chase, Series II. and III. 

 Price $1.00. 



These series consist of three plates, each containing a number 

 of well-defined examples of new and rare diatoms from a collection 

 of Barbadoes fossil marine deposits. Each is described in the 

 ■accompanying text, and together make a fasciculus of much value 



