30 D. VAN NOSTKAND COMPANY'S 



MTTNRO, JOHN, C.E., and JAMIESON, ANDREW, 



C. E. A Pocketbook of EJectrical Rules and Tables for the 

 use of Electricians and Engineers, fifteenth edition, revised 

 and enlarged. With numerous diagrams. Pocket size. Leather. $2. 50 



MURPHY, J. G., M.E. Practical Mining. A Field 



Manual for Mining Engineers. With Hints for Investors in Mining 

 Properties. 16mo, morocco tucks $1.00 



NAQUET, A. Legal Chemistry. A Guide to the Detec- 

 tion ot Poisons, Falsification of Writings, Adulteration of Alimentary 

 and Pharmaceutical Substances, Analysis of Ashes, and examination of 

 Hair, Coins, Arms, and Stains, as applied to Chemical Jurisprudence, 

 for the use of Chemists, Physicians, Lawyers, Pharmacists and Experts. 

 Translated, with additions, including a list of books and memoirs on 

 Toxicology, etc., from the French, by J. P. Battershall, Ph.D., with a 

 preface by C. F. Chandler, Ph.D., M.D., LL.D. 12mo, cloth. .$2.00 



NASMITH, JOSEPH, The Student's Cotton Spinning. 



Third edition, revised and enlarged. 8vo, cloth, 622 pages, 250 

 illustrations $3.00 



NEUBURGER, HENRY and HENRI NOALHAT. 



Technology of Petroleum. The Oil Fields of the World ; their His- 

 tory, Geography and Geology. Annual Production, Prospection and 

 Development. Oil-well Drilling, Transportation of Petroleum by 

 land and sea. Storage of Petroleum. With 153 illustrations and 25 

 plates. Translated from the French by John Geddes Mclntosh. 8vo, 

 cloth, illustrated net, $10.00 



NEW ALL, JOHN W. Plain Practical Directions for 



Drawing, Sizing and Cutting Bevel-Gears, showing bow the Teeth 

 may be cut in a Plain Milling Machine or Gear Cutter so as to give 

 them a correct shape from end to end ; and showing how to get out 

 all particulars for the Workshop without making any Drawings. 

 Including a Full Set of Tables of Reference. Folding Plates. 8vo, 

 cloth $1.50 



NEWLANDS, JAMES. The Carpenters' and Joiners' 



Assistant : being a Comprehensive Treatise on the Selection, Prepara- 

 tion and Strength of Materials, and the Mechanical Principles of 

 Framing, with their application in Carpentry, Joinery, and Hand- 

 Bailing ; also, a Complete Treatise on Sines ; and an illustrated Glos- 

 sary of Terms used in Architecture and Building. Illustrated. Folio, 

 half morocco $15.00 



NIPHER, FRANCIS E., A.M. Theory of Magnetic 



Measurements, with an appendix on the Method of Least Squares. 

 12mo, cloth $1.00 



NUGENT, E. Treatise on Optics; or, Light and Sight 



theoretically and practically treated, with the application to Fine Art 

 and Industrial Pursuits. With 103 illustrations. 12mo, cloth. . .$1.50 



