Gl'8 ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



under the heads of the special subjects to which they are 

 dedicated. 



Especial attention may be again called to the annual rec- 

 ords of progress in the different departments of science. 

 These must be considered as indispensable adjuncts to the 

 student, and no considerable library should be without 

 them. The cost is inconsiderable, and there are very few 

 cases where, in an enforced choice between a new mono- 

 graph in the department to which one relates and the An- 

 nual Record itself, preference might not wisely be given to 

 the latter over the former. The neglect to make such pro- 

 vision is, nevertheless, remarkable, and most of the libraries 

 of the country are destitute of these indispensable periodi- 

 cals, and to many librarians they seem to be even unknown. 



As in previous volumes of this Record, those journals have 

 been referred to for notices of new works which are most 

 widely circulated in the United States, and therefore avail- 

 able to most readers. They are the following : 



(1) The American Journal of Science and Art. Editors 

 and Proprietors: James D. and E. S. Dana, and B. Silliman. 

 Associate Editors [eight]. Third series. Volume XV. [Vol- 

 ume XVI.]. (Whole number, CXV, CXVI.) Nos. 85-90 

 [Nos. 91-96]. January to June, 1878 [July to December, 

 1878]. New Haven: J. D. & E. S. Dana. 1878. (8vo. 

 Published monthly. Price, $6 00 per year, with 12 cts. for 

 prepaid postage.) 



(2) The American Naturalist, an Illustrated Magazine of 

 Natural History. Edited by A. S. Packard, Jr., and Edward 

 D. Cope. Associate Editors [four]. Volume XII. [Volume 

 XIII.]. Philadelphia: Press of McCalla & Stavely [etc.]. 

 1878. (8vo. Published monthly ; yearly subscription, $-4 00.) 



(3) Nature : a Weekly Illustrated Journal of Science. 

 Volume XVII. October 1877 to May 1878. [Volume XIX. 

 October 1878 to May 1879.] London and New York: Mac- 

 millan and Co. 1878. (4to. Published weekly. Price, six- 

 pence per number.) 



(4) The Popular Science Monthly. Conducted by E. L. 

 Youmans. Vol. XII. November, 1877, to April, 1878 [et 

 seq.]. New York: D. Appleton and Company, 549 and 551 

 Broadway. 1878 [et seq.]. (8vo. Published monthly. Price, 

 $5 per annum.) 



