120 



THE POPULAR SCIENCE MONTHLY. 



teiests of the Country. By John M. Wood- 

 worth, M. D., Supervising Surgeon United 

 States Marine Hospital Service." B. " Sail- 

 ors as Propagators of Disease ; " Abstract 

 of a paper entitled " The Hygiene of the 

 Forecastle." By Heber Smith, M. D., Sur- 

 geon-in-charge United States Marine Hos- 

 pital Service, Port of New York. The latter 

 author gives diagrams of some representa- 

 tive forecastles, the sight of which is enough 

 to condemn them. He shows how many of 

 the gravest diseases are introduced and dis- 

 seminated through communities to a greater 

 extent by sailors than by any other agencies. 



PUBLICATIONS EECEIVED. 



An Analysis of the Life-form in Art. 

 By Harrison Allen, M. D. Pp. '71. Phila- 

 delphia : McCalla & Stavely. 



The Next Phase of Civil Progress. Pp. 

 43. New York : Button & Co. 



The Glacial Epoch of our Globe. By 

 Alexander Braun. Pp. 40. Price, 25 cents. 

 Boston : Estes & Lauriat. 



Protection and Free Trade. By Isaac 

 Butts. Pp. 190. Price, $1.25. New York : 

 Putnams' Sons. 



Comparison of Certain Theories of So- 

 lar Structure with Observation. By S. P. 

 Langley. Pp. 9. 



Water in the Treatment of Disease. By 

 V. Zohiowski, M. D. Pp. 39. 



Vital Statistics and the " Military Re- 

 construction " of Louisiana, By S. E. 

 Chaille, M. D. Pp. 20. 



Flora of Nebraska. By S. Aughey, Ph. D. 

 Pp. 31. 



Our Currency. By J. G. Drew. Pp. 43. 

 Price, 20 cents. New York : Hinton & Co. 



Irredeemable Paper Currency. Abridged 

 from J. S. Mill's " Principles of Political 

 Economy." Pp. 51. Price, 20 cents. New 

 York : Hinton & Co. 



The Cremation Theory of Specie Re- 

 sumption. By David A. Wells. Pp. 19. 



Measurement of Air-Angle of Micro- 

 scope-Objectives. By R. B. FoUes. Pp. 8. 



Elements of Embryology (Foster & Bal- 

 four), Macmillan. 



Elements of Mechanics (Nystrom), Por- 

 ter & Coates, Philadelphia. 



Birds of the Northwest (Coues), Gov- 

 ernment Printing-Office. 



Improvement of Health (Knight), Put- 

 nams. 



Lectures on the Teeth (Chase), Gray, 

 Baker & Co., St. Louis. 



Catechism of the Locomotive (Forney), 

 Railroad Gazette, New York. 



Maintenance of Health (Fothergill), Put- 

 nams. 



New Manual of Physiology (Kiiss, Du- 

 val, and Amory), Campbell, Boston. 



Philosophy of Breeding (Sturtevant), 

 Wright & Potter, Boston. 



Composition of the Ground-Atmosphere 

 (Nichols), Wright & Potter, Boston. 



Brooklyn Journal of Education. 



Population of an Apple-Tree (Packard), 

 Estes & Lauriat. 



Geological Survey of Alabama (1874). 



Physical Features of Minnesota River 

 Yalley (Warren). 



The Mammoth Cave and Some of its 

 Animals (Putnams). 



The Family Nemophidse (Putnams). 



Stevens Institute of Technology (18*74). 



MISCELLANY. 



The Fog-Signal Question. The elabo- 

 rate articles on " The Atmosphere in Rela- 

 tion to Fog-Signaling," by Prof. Tyndall, 

 which appeared in our March and April 

 numbers, embodied the interesting results 

 of a new and important research, and have 

 attracted much attention, both on the part 

 of our men of science and of many unsci- 

 entific readers. There has been some dis- 

 sent from his views, but Prof. Tyndall is 

 quite easy about that. In a recent private 

 letter he says : " A copy of the report of the 

 United States Light-house Board, for 1874, 

 has just reached me. I read certain por- 

 tions of it with regret, but the questions it 

 raises may be safely left to the judgment of 

 the scientific men of the United States." 



