364 



CALENDAR OF SOCIETIES. 



Philosophical Society, Washington. 



Dec. 20. — Annual Reports of the Treasurer 

 and Secretaries, and election of oflQcers for 

 the year 1891. 



The Anthropological Society, Washing- 

 ton. 



Dec. 16 —Robert Fletcher, The Vigor and 

 Expressiveness of Older English. 



Wants. 



Any person seeking' a position /or which he is quali- 

 fied by his scientific atiain-ments^ or any person seeking 

 some 07ie to fill a position of this character^ be it thai 

 0/ a teacher of science^ chemist^ draughtsman^ or ivhat 

 not^ 7nay have the ' Wanf inserted under this head 

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

 able character of his application. Any person seeking 

 in/ortjiation on any scientific question^ the address o/ 

 any scientific tnan^ or -who can in any way use this col~ 

 U7}in for a purpose consonant with the nature of the 

 paper ^ is cordially invited to do so. 



WANTED.— A young man wishes a position as in- 

 structor in the sciences in some school or 

 college. Chemistry a specialty. Would like to hear 

 of some position with a private or manufacturing 

 chemist, in which his knowledge of chemistry would 

 help him. Address E. E. TOWNE, B.A., 272 "Worth, 

 ington St., Springfield, Mass. 



WANTED.— An Exploring EspedltioD, backed by 

 $3 5,000, will be sent into Alaska and the Brit- 

 ish Northwest Territory the coming year, to be gone 

 one or two seasons. A scientist or two will more 

 than likely be taken along. Applications from such 

 will be gladly received and carefully considered. 

 To assist in making these applications tho comman- 

 der would say that be coisiders a full practical 

 knowledge of mineralogy and geology necessary, and 

 if the applicant can add the duties of botanist, eth- 

 nologist, or any other of the sciences, and photog- 

 raphy, sketching, medicine and surgery, or other 

 useful arts for exploring; it will add to the chances 

 of being selected. Applicants must be physically 

 perfect, and ought to be about medium age. One of 

 these scientists will be the second in command of 

 the party. Any credentials forwarded for consider- 

 ation will be returned, if requested, after considera- 

 tion. Address "ALASEA,'' care of Science. 



WANTED.— There being a considerable annual 

 income for the purchase of books for the Mu- 

 seum Reference Library of Iowa College, it is de- 

 sirable to have at hand any and all circulars, speci- 

 men sheets, catalogues, etc., of all works on Natural 

 History in general, both foreign and domestic. 

 Circulars of museum supplies, apparatus, etc., etc., 

 desired also. State terms. Address ERWIN H. 

 BARBOUR, Box 133:3, Grinnell, Iowa. 



WANTED.— A situation as Analytical Chemist is 

 desired by the assistant of the late noted 

 scientist, Dr. Cook, during his 15 years survey of the 

 State of New Jersey. Highest testimonials fur 

 nished. Address Prof. RJDWIN H. BOGARDUS, 

 New Brunswick, P, O. Box 224, care Prof. F. C. 

 Van Dyck. 



COULD some one inform me what the ingredients 

 and origin of asphalt as used for street-paving 

 and gathered at Trinidad are? Also how gathered 

 and shipped by natives, and mode of refining by the 

 "Warren- Scharf Co. of New York and the Barber Co. 

 of Washington? G. KNIPEK, 28 Gunn Block, Grand 

 Rapids, Mich. 



Exchanges. 



[Freeof charge to all, if of satisfactory character. 

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

 York.l 



I wish to exchange Eastern Lepidoptera for those that 

 I do not have, particularly those foand in the South. 

 Jos. F. Crandall, Honesdale, Wayne Co., Pa. 



To exchange, 1890 Seeger and Guernsey Cyclopedia, 

 containine a complete list of the manufactures and pro- 

 ducts of the U. S., and address of first hands, cost So. 

 David R. Lewis, Saybrook, III. 



For exchange— Nice specimens of Unios alatiis, trigo- 

 nus, parvus, occidens, anadontoides gibbosus, rectus, veru- 

 cosus, gracilis coccineus, ventricasus. multiplicatus and 

 pUcatus cornutus. Margaritana confrogosa, complanata, 

 rugosa. Anadonta edentula, decora, corpulenta, and 

 about 300 of the beautiful Ana subnrbiculala. Wanted: 

 Unios from all parts of the world, and sea-shells. Ad- 

 dress Dr. W. S. Strode, Bernadotte, III. 



BOOKS : Moat to E^xcbange them 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. 



SCIENCE. 



JUST PUBLISHED. 

 HOUSEHOLD HYGIENE. 



By Mary Taylor Bissell, M.D., New York. 

 12°. 75 cents. 

 "This little volume has been compiled with the 

 hope that the housekeeper of to-day may find in 

 its pages a few definite and simple suggestions 

 regarding sanitary house-building and house- 

 keeping which will aid her to maintain in her 

 own domain that high degree of intelligent 

 hygiene in whose enforcement lies the physical 

 promise of family life " (author's preface). 



TIME RELATIONS OF MEN- 

 TAL PHENOMENA. 



By Joseph Jastrow, Professor of Psychol- 

 ogy AT the University of Wisconsin. 



12". 50 cents. 

 It is only within very recent years that this 

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 it is natural that the results of diffeient workers, 

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 sketch of what has been done, with due reference 

 to the ultimate goal as well as to the many gaps 

 still to be filled. 



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



NEW YORK. 



[Vol. XVI. Nu. 412 



THE WINNIPEG COUNTRY; 



OK, 



ROUGHING IT WITH AN ECLIPSE PARTY. 



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(S. H. SCUDDER.) 



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N. D. C. HODGES, Publisher, 



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J^ongfeuow. 



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Have yon stood on the world farions " Plymouth 



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OF WHAT USE IS THAT PLANT? 



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