402 



THE POPULAR SCIENCE MONTHLY. 



gratioDS in this area ; the cooperation of our 

 Government with Canada is needed to work 

 up the subject properly in the locust-region 

 north of the United States boundary-line ; 

 and some other problems remain to be 

 solved." This done, it is hoped that it will 

 be "possible at least to greatly modify or 

 lessen these invasions, and diminish the 

 losses resulting therefrom. If not entirely 

 prevent them." 



Dangers from Color-Blindness in Rail- 

 road Employees and Pilots. By B. j 

 Joy Jeffries, M. D. Pp. 40. Incura- [ 

 bility op Congenital ColorBlind- ' 

 NESS. Pp. 8. Color-Blindness and its I 

 Practical Relations. Pp. 4. Same _au- 

 thor. Boston : Rand, Avery & Co. print. , 



The very title of the first of the above- i 

 named pubUcations will win for it the ear. j 

 nest attention of ihe public. The dangers 

 from the color-blindness of railroad-men and 

 pilots are obvious, and it is time that effi- 

 cient measures should be taken to obviate 

 them. The Massachusetts Board of Health 

 is to be highly commended for having pro- 

 cured the publication of Dr. Jeffries's ob- 

 servations on this subject. 



Elementary Course of Geometrical Draw- 

 ing. ByG. L.VosE. Illustrated by ^38 

 Plates. Boston : Lee & Shepard, 1878. 

 Price, $5. 



This course is designed to meet the 

 wants of the lower classes in engineering 

 schools ; it will also be of service to those 

 who wish to pursue this branch of study by 

 themselves. The system here followed has 

 been subjected for many years to the test 

 of practical experience in the class of civil 

 engineering in Bowdoin College. 



PUBLICATIONS RECEIVED. 



Report of the Chief Signal -Officer for the 

 Year 1877. With numerou? Charts. Washing- 

 ton : Government Printing-Offlce. 1877. I p. 5(0. 



A Face illumined. By E. P. Roe. New York : 

 Dodd, Mead & Co. Pp. 658. $1.50. 



Report of the Board of Regents of the Smith- 

 sonian Institution for the Year 1877. Washing- 

 ton : Government Printing-Offlce. 1878. Pp. 

 500. 



The Telegraph in America. By James D. 

 Reid. With numerous Portraits. New York : 

 Derby Brothers. 1878. Pp.846. $6. 



The Races of European Turkey. By Edson 

 L Clark. New York : Dodd, Mead & Co. 1878. 

 Pp. .538. $3. 



Daily Bulletin of Weather-Reporis for Janu- 

 ary, Fehruarv, and March, 1877. Washington : 

 Government Printing-Offlce. 1878. 



First Quarter Century of the Home Insurance 

 Company Newlork: Printed by order of the 

 Boarl 1878. Pp.80. 



Astronomy. Bv R. S. Ball. New York : Holt 

 ACo". 1873. Pp.107. 60 cents. 



Science News. Published fortnightly by S. 

 E. Cassino, Salem, Mass. Vol. I., No. 1. Pp. 16. 

 $2 per annum. 



Geoloo-ical and Natural History Survey of 

 Minnesota. Report for the Year 1877. Minne- 

 apolis : Johnson, Smith & Harrison. 1878. Pp. 

 225. 



Third Annual Report of the Johns Hopkins 

 University. Baltimore : Murphy print. 1878. 



Annual Report on the Operations of the De- 

 partment of the Interior for the Year ending 

 June 30, 1878. Washinu;ton : Government Pnut- 

 ing-Offlce. Pp. 48. 



An Essay on Free Trade. By Richard Haw- 

 ley. New York : Putnam's Sons. 18i8. Pp. bd- 

 25 cents. 



Dissipation of Electricity in Gases. By De- 

 metrieff Bobonlieff. From the Amcncan Jour- 

 nal of Science and Arts. Pp. 13. 



Report of the New York Association for im- 

 proving the Condition of the Poor. Pp. 64. 



Laws affecting Tenement and Lodging 

 Houses in New York and Brooklyn. Printed by 

 the Association. Pp. 11- 



Constituents of Climate, with Special Refer- 

 ence to Florida. By F. D. Lenie M. D. Louis- 

 ville, Kentucky: Bichmond and Louisville Meai- 

 cal Journal priut. Pp.56. 



On the Genealogy of Plants. By Lester F. 

 Ward. Pp.378. 



Report of the Survey of the Northern and 

 Northwestern Lakes and the Mississippi River, 

 in Charge of C. B. Comstock and M. H. Adams. 

 Washington : Government Printii.g;pfflce. From 

 Report Sf Chief of Engineers. 1877. Pp.100. 



Catalogue of the Iron Age Library. New 

 York: David Williams. Pp.50. 



General Vaccination throughout the Country. 

 By Elisha Harris. Pp. 16. Records ot Deaths 

 and Causes of Death, ^.a^e author Pp. 16. 

 From Papers of the American Public Health Aa- 

 sociatiou. Cambridge : Riverside press. 1877. 

 Art Anatomy. By A. J. Howe, M.D. Pp.23. 

 Note on Cladocera. By Edward A. Birge, Ph. 

 D. With Plates. Pp. 34. 



A Collection from the Ancient Cemetery at 

 the Bay of Chacota, Peru. By John H. Blake. 

 Pruited at the Salem press. Pp. 304. 



The Halifax Fishery Award. By Alexander 

 Bliss. Washington : Beresford prmt. 18(8. Pp. 



24. ^ ^ 



American Jurassic Dinosaurs. By O. C. 

 Marsh. With Plates. Reprinted from ^ffimca?t 

 Journal of Science. Pp. 6. 



Evolution of Character. By J. L D. Hands. 

 Nashville, Tennessee : Ligon & Co. print, f p. 

 11. ^ .- 



Air and Moisture on Shipboard. By T. J. 

 Turner, M. D. Pp. 16. 



Chemical Constitution of the Atmosphere. 

 By Albert R. Leeds, Ph. D. From Annals of New 

 York Academy of Sciences. Pp. 27. 



Eradication of Syphilis and Crime By George 

 F. French, M. D. Portland, Maine : Berry prmt. 



Conservation of Force. By Thos H M^gjc^j. 

 Mexico, Missouri : Unionprint. 18(8- Pp- 5b. 



The Amateur's Handbook of Practical In- 

 formation for the Workshop and Laboratory. 

 New York : The Industrial Pubhcation Co. 18 18. 

 Pp. 44. 10 cents. 



Natural Succession of the Dicotyledons. By 

 Lester F. Ward. From the Ame7ican J\atu7'al- 

 ist. Pp.11. 



