11 



SCIENCE. 



[Vol. XVI 1. No. 420 



CALENDAR OF SOCIETIES. 



Women's Anthropological Society of 



America, Washington. 



Feb. 14. — Miss Kate Foote, Mission In- 

 dians. 



American Institute of Electrical Engi- 

 neers, New York. 

 Feb. 34. — Oscar T. Crosby, Data and Re- 

 sults of Experiments with Electric Traction 

 at 130 Miles an Hour. 



Boston Society of Natural History. 



Feb. 18. — Warren Upham, Walden, 

 Cochituate, and other Lakes enclosed by 

 Modified Drift; W. H. Niles, Notes upon 

 Asphaltum Deposits in California. 



Wants. 





Any person seeking a position /or -which he 

 fiedby his scientijic attaimnen^s. or any person see/ztn^ 

 some one to fill a position of this character, be it that 

 of a teacher of science, chemist, draughtsman, or what 

 not. may have the ' Want^ inserted under this head 

 FREE OF COST, if he Satisfies the publisher of the suit- 

 able character of his application. A ny person seeking 

 information on any scientific question, the address of 

 any scientific 7nan, or who can in any way use this col- 

 umn for a purpose consonant with the nature of the 

 paper, is cordially invited to do so. 



WANTED— A position to teach Electrical EDgi- 

 neering by a student from leading English and 

 French and U. S. science schools, or would accept 

 position as Consulting Electrical Engineer, Electri- 

 cian, etc. Very highest testimonials, London & 

 Hartford Publishing Co., N. T. (International Press 

 Department.) 



Tj'OE SALE.— 



Scribner's 9th Edition of the 



"EncyclopsediaBritannica" 



(24 vols.), $73. 



" The Century War-Book " 



(4 vols.), S19. HalJ-Calt. 



Sutton's "Volumetric Analysis" (1886) 



$3.75. 



Miller's " Chemical Physics " 



(Wiley, 1874), 



Miller's " Inorganic Chemistry " 



(Wiley, 1873), 



Miller's " Organic Chemistry " ^ 



(Longmans, Green & Co., 1880.) 

 (Bvols.), $6. 



Roscoe & Schorlemmer's "Treatise on 

 Chemistry " 



(Vol. I., Vol. II. Parts 1 and 3, Vol. III. 



Parts 1 and 2), 1878-84. 



(5 vols.), $16.80. 



Tlie price does not include express charges. 



SCIENCE BOOK AGENCY 



47 I-afayette Place, New York. 



. sition during the summer of 1891 in some 

 scientific work, particularly Orinthology. either as 

 an instructor or tutor, or in making collections or 

 accompanying some scientiflc expedition. Can give 

 good references. Address HUBERT L. CLARK, 

 Amherst, Mass. 



WANTED.- A youM man who has been teaching 

 in a first-class High School desires a position 

 in a similar institution. Is competent to teach 

 Mathematics, Latin. Book-keeping, and the English 

 branches. Can give highest references Address H. 

 W. MARTHENS, 6208 Broad St., Pittsburgh, Pa. 



WANTED.— A situation in a scientiflc house by a 

 graduate of the scientific department of the 

 Jersey City High School as Geologist, Mineralogist 

 or as assistant teacher in Physics or assistant to a 

 chemist. Best of references. B. "W. PERRY, 582 

 Third Street, Jersey City, N. J. 



1 If you have a 

 COLD or COUGH, 



acute or leadlni; to 



; CONSUMPTION, 



SCOTT'S 



EMULSION 



WANTED.— By a medical student of three 

 courses, a position on some war or mercan- 

 tile vessel sailing between America and some for- 

 eign country, as Clerk, Assistant Physician or Drug- 

 gist, or any respectable occupation. Content with 

 a moderate remuneration. Highest commenda- 

 tions. W. L. S., Science Office. 



I OF PUKE COI> I^ITER Oil. | 



AND HYPOPHOSPHITES 

 ; OF ZI3IE AND SODA 



I IS sxritE! ctth.:e s'oit irr. 



This preparation contains the stlmula- | 

 ting properties of the Bypophnaphiiea i 

 and fine liorivegion. Cod Liver Oil, Used 

 by physicians all the world over. It Is as I 

 I palatable as milh. Three times as efflca- ' 

 cious as plain Cod Liver Oil. A perfect 

 Emulsion, better than allothers made. For ] 

 all forms of Wasting Diseases^ Bronchitis, 



CONSUlIPTTOHf, 



Scrofula, and as a Fl€sh Producer I 



there is nothing like SCOTT'S EMULSION. 



It Is sold by all Druggists. Let no one by 

 profuse explanation or impudent entreaty 

 Induce you to accept a substitute. 



TNPORMATION WANTED.— Clarence W. Bowen, 

 ± Secretary of the Committee on the Centennial 

 of Washington's Inauguration, 261 Broadway, New 

 York, desires information regarding the portraits of 

 John Hathorn and Jeremiah Van Rensselaer, mem- 

 bers of Congress from New York. These portraits, 

 for the Memorial Volume, are particularly desired, 

 to complete the list of portraits of the New York 

 delegation in Congress at the time of Washington's 

 inauguration. 



HANDBOOK OF METEOROLOGICAL TABLES. 



By Asst. Prof. H. A. Hazen. 

 137 pp. 8°. 



Professor Waldo says ; "I heartily recom- 

 mend them to all workers in meteorology, 

 and do not see how any of our American 

 meteorologists can afford to be without a 

 copy." 



Professor Symons of London says : ' ' They 

 are unquestionably valuable helps, which 

 must be kept handy, and replaced when 

 worn out." 



Price, postpaid, $1. 



N. D. C. HODGES, 47 Lafayette PL, New York. 



BOOKS : How to Excliange tbeiu for 

 otliers. Send a postal to the Science exchange 

 column (insertion free), stating briefly what you 

 want to exchange. Science, 47 Lafayette Place 

 New York. 



Apply by letter to T. C. MENDENHALL, Su- 

 perintendent U S. Coast and Geodetic Survey, 

 Washington, D. C 



WANTED.— An Entomologist to accompany a 

 camping party of boys during July next. 

 Address, stating experience and salary expected. 

 ALBERT L. AREY, Free Academy, Rochester, N.Y 



WANTED.— A young man wishes a position in an 

 experiment station, botanical department pre- 

 ferred. References and evidence of 

 application. Addresi 

 ment Station, Columbus. 



A UNIVERSITY GRADUATE IN SCIENCE, at 

 Jr\. present a junior student in medicine at the Uni- 

 versity of Michigan, desires a position as teacher or 

 laboratory assistant. Special preparation m Zool- 

 ogy, Histology, Physiology and Human Anatomy 

 Will also teach, if desired, Physics, Chemistry, Bot 

 any. Entomology, Embryology, Bacteriology and 

 Sanitary Science. References and full particulars 

 on application. H. B., ao East Jefferson St , j 

 Arbor, Mich. 



A TEMPORARY BINDER 



for Science is now ready, and will be mailed 

 postpaid on receipt of 75 cents. 



This binder is strong, durable and 

 legant, has gilt side-title, and al- 

 ? the opening of the pages per- 

 ly flat. Any number can be 

 !n out or replaced without dis- 

 hing the others, and the papers 

 not mutilated for subsequent 

 . manent binding. Filed in this 

 binder, Scienceis always convenient 



Temporary binders of the same 



but without side title, to 



it any paper or periodical of ordi- 



led postpaid on receipt of price as 



ordering, be sure to give the name of 



1 and style of binder. 



long, cloth, $0.50; leather, ?o.6o.; 



73. 



N. D. C. HODGES. 47 Lafavette Place, New York. 



Exchanges. 



charge to all, if of satisfactory character. 

 . D. C. Hodges, 47 Lafayette Place, New 



[Freeof 

 Address N 

 York.l 



For exchange— Fossil leaves from the Laramie beds of 

 South Table Mountain, near Golden, Col., for oiher fos- 

 sils, historical relics, or minerals. Address John B. Gar- 

 vin, State School of Mines, Golden, Col. 



For Sale or Exchange— All forms and species of Cana- 

 dian birds, mammals, insects, reptiles, fish or other nat- 

 ural history specimens. First class specimens only sup- 

 plied. G. E. Atkinson, 639 Spadina Ave.. Toronto, Can. 



1 would like to e.-cchange first six vols. Roscoe and 

 Schorlemmer's Chemistry, and Vols. II. and III. of "Ed- 

 ucation ' for American Naturalist for 1889 and 1890, or 

 Z° ™.Zoology. C. Dwight Marsh, Ripon College, 



Old and Rare Books. 



JACK NUMBERS and complete sets of leading Mag- 

 azines. Rates low. AM. MAG. EXCHANGE, 



I hav< 



andryid; 

 Thompson, 



I d"'not 1 



Jo.s. F. Cra 



To exch: 



a good supply of Eastern Coleoptera which I 



change for .species not in my collection. Mel- 



and Oedemeridae especially desired. Toe C 



1, Rosebank P. O., Box 73, S. I. 



o exchange Eastern Lepidoptera for those that 



have, particularly those found in the South 



'all, Honesdale, Wayne Co., Pa. 



;e, 1890 Seeger and Guernsey Cyclopedia, 



omplete list of the manufactures and pro- 



ducts of the U. S., and address of first hi 

 David E . Lewis, Saybrook, 111, 



OFWHAT USE IS THAT PLANT? 



You can find the answer in 



SMITH'S "DICTIONARY OF 

 ECONOMIC PLANTS." 



Sent postaid on receipt of $3.80. Publish- 

 er's price, §3.50. 



SCIENCE BOOK AGENCY, 



47 Ijafayette Place, Nevr York 



WORLD-ENGLISH. 



25 Cent.s. 



HANDBOOK OF 

 WORLD-ENGLISH. 



25 Cents. 



Ex - President Andrew D. 

 White, of Cornell University, 

 says: "I believe that the highest interests of Chris- 

 tian civilization and of humanity would be served 

 by its adoption." 



" So set down, our tongue is the best for the world 

 to unite upon."— Broofcii/7i Eagle. 



'■ The idea of Mr. Bell has much to recommend it, 

 and the presentation is charmingly clear." — Ameri- 

 can, Phila. 



"The result is a language which cannot fail to 

 meet with acceptance." — Boston Traveller. 



" World English deserves the careful consideration 

 of all serious scholars."— ilfodera Language Notes. 



Sent, postpaid, on receipt of price. 



N. D. C. HODGES, 47 Lafayette Place, i Y. 



