420 Scientific Intelligence. 







!). An Introduction to Science; by Bertha M. Clark. Pp. 

 I!i I, with 346 figures. New York, 1918 (American Book Co.). — 

 "The aim of this book is to start young high school pupils on 

 scientific projects which will influence for good their present 

 lives, and which under different guise will equally influence for 

 good their future lives." Among the scientific projects pre- 

 sented to the pupils are those of the selection of economic menus 

 of dietary standards; the selection of suitable paints, oils, and 

 varnishes for actual daily use; the examination of different 

 fuels, and their adaptability to furnace and kitchen range; the 

 investigation of home and school lighting and its influence on 

 eyesight; the utilization of simple labor-saving devices to relieve 

 physical exertion ; the employment of chemical agents to trans- 

 form useless waste products, such as grease and sewage, into 

 useful products, such as soaps and fertilizers; and the applica- 

 tion of hygienic facts and theories to school, home, and com- 

 munity sanitation. 



The author's style is clear, simple, and scientifically accurate. 

 The material for the text has been selected with care, the figures 

 are all good and many of them are half-tone reproductions of 

 photographs, and typographical errors are exceptionally rare. 

 Not only is the book admirably adapted to the needs of the 

 students for whom it was written but it contains a wealth of 

 valuable information which would be very helpful to progressive 

 housewives whose early scientific training may have been some- 

 what inadequate or perhaps entirely lacking. h. s. u. 



10. Laboratory Manual; by Bertha M. Clark. Pp. 203. 

 New York, 1918 (American Book Co.). — This book is a com- 

 panion volume to "An Introduction to Science" by the same 

 author {vide supra). It consists of perforated loose leaves, each 

 record requiring one leaf. The student is expected to enter his 

 experimental data and conclusions on the blank areas of each 

 leaf and to hand in the finished record for examination. The 

 statement of the problem, a list of the essential pieces of appa- 

 ratus, a diagram of the assembled parts, and the directions, 

 observations, conclusions, and discussion are printed on the 

 first or front page of each sheet. When the exercise involves 

 plotting, the coordinate cross-ruling is printed on the back or 

 second page of the sheet. The pages are numbered consecutively 

 and a list of the titles of the experiments is furnished so that, 

 at the end of the course, the entire set of reports may be bound 

 permanently in a systematic sequence. The number of experi- 

 ments (about 100) is too great for one year's work, the under- 

 lying idea being to enable teachers in cities and in rural districts 

 to omit the problems with which the students are already 

 familiar because of their respective environments and every-day 

 experiences. The problems suggested are interesting and 

 instructive, and the same high standard of composition and typo- 

 graphical perfection, which enhances the attractiveness and 

 value of the companion text, has been maintained. H. s. u. 



