PHYSIOLOGY, ANATOMY, ETC. 39 



Having failed to find in books a satisfactory theory of those conditions 

 which produce lateral curvature, Mr. Harwell resolved to investi 

 gate the subject for himself ab initio. The present work is the 

 result of long and patient study of Spines, normal and abnormal. 

 He believes the views which he has been led to form account for those 

 essential characteristics which have hitherto been left unexplained ; 

 and the treatment which he advocates is certainly less irksome, and 

 will be found more efficacious than that which has hitherto been 

 pursued. Indeed, the mode in which the first edition has been 

 received by the profession is a gratifying sign that Mr. BarweWs 

 principles have made their value and their weight felt. Many 

 pages and a number of woodcuts have been added to the Second 

 Edition. 



Corfield (Professor W. H.) A DIGEST OF FACTS 



RELATING TO THE TREATMENT AND UTILIZATION 

 OF SEWAGE. By W. H. CORFIELD, M.A., B.A., Professor 

 of Hygiene and Public Health at University College, London. 

 8vo. IOJ-. 6d. Second Edition, corrected and enlarged. 



The author in the Second Edition has revised and corrected the entire 

 work, and made many important additions. The headings of the 

 eleven chapters are as follow : /. " 'Early Systems: Midden-Heap^ 

 and Cesspools.' 1 '' II. "Filth and Disease Cause and Effect." 

 III. "Improved Midden- Pits and Cesspools; Midden- Closets, Pail- 

 Closets, etc." IV. "The Dry- Closet Systems. V. "Water- Closets.'* 

 VI. "Sewerage." VII. " Sanitary Aspects oj the Water-Carrying 

 System." VIII. "Value of Sewage; Injury to Rivers" IX. 

 "Town Sewage; Attempts at Utilization." X. "Filtration and 

 Irrigation." XI. "Influence of Sewage Farming on the Public 

 Health." An abridged account of the more recently published 

 researches on the subject will be found in the Appendices, while 

 the Summary contains a concise statement of the views which the 

 author himself has been led to adopt: references have been inserted 

 throughout to show from what sources the numerous quotations have 

 been derived, and an Index has been added. "Mr. Corfield's work- 

 is entitled to rank as a standard authority, no less than a con 

 venient handbook, in all matters relating to sewage." Athcnaum. 



Elam (C.) A PHYSICIAN'S PROBLEMS. By CHARLES 

 ELAM, M.D., M.R.C.P. Crown 8vo. gs. 



