SCIENCE. 



[Vol. XVI 1. No. 423 



CALENDAR OF SOCIETIES. 



Biological Society, Washington. 



March 7. — F. A. Lucas, Exhibition of 

 Young Hoatzins, a Specimen of Bison lati- 

 frons from Florida; T. H. Bean, The Fishes 

 of Great South Bay, Long Island ; J. N. 

 Rose, A New Aster from Southern Califor- 

 nia; George B. Sud worth, Color and Odor 

 of Flowers in attracting Insects ; J. M. Sted- 

 man. Embryo of a Chick with Two Prbto- 

 vertebrse. 



Anthropological Society, Washington. 



March 3. — William H. Holmes, Function 

 of Tempering in Earthenware; J. D. Mc- 

 Guire, The Stone Hammer and its Many 



Uses. 



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Wants, 



A 7iy person seeking a position /oi 

 fied by his scientific attainments^ of 

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WANTED— A position to teach Electrical Eagi- 

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WANTED.— A young man in college would like a 

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Exchanges. 



[Free of charge to all, if of satisfactory character. 

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Th. 



Will exchange a n 

 vaiiometer, about 6,000 ol 

 head & Co , London, and 

 i-ggg, shunts, lampand |sc 

 and ammeter, or large Wh' 

 or a portable testing outl 

 Office, 47 Lafayette PI; 



son reflecting astatic "Jtal- 

 , made by Clark, Muir- 

 ting £30, with i-g, j-99, 

 for a Weston voltmeter 

 tone bridge, dial pattern, 



ittit. Address G. A., Science 



, New York. 



For exchange — Fossil leaves from the Laramie beds of 

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For Sale or Exchange — All forms and species of Cana 

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 ural history specimens. First class specimens only sup' 

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1 would like to exchange first six vols. Roscoe anc 

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 ucation " for American Naturalist for 1889 and 1800, 01 

 works on Zoology. C. Dwight Marsh, Ripon College. 

 Ripon, Wis. 



I have a good supply of Eastern Coleoptera which I 

 wish to exchange for species not in my collection, Mel- 

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I wish to exchange Eastern Lepidoptera for those that 

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



To exchange, 1890 Seeger and Guernsey Cyclopedia, 

 containing a complete list of the manufactures and pro- 

 ducts of the U. S., and address of first hands, cost $6. 

 David R, Lewis, Saybrook, 111. 



Some I 

 Childrefi j 



Growing 

 Too Fast i 



become listless, fretful, without ener- 

 gy, thin and weak. But you can for- 

 tify them and build them up, by the 

 use of 



SCOTTS 



EMULSION 



OF PURE COD LIVER OIL AND 



HYPOPHOSPHSTES 

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They will take it readily, for It is at- J 

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 TENTIVE OR CURE OP COUGHS OR COLDS, I 

 IN BOTH THE OLD AND YOUNG, IT IS I 



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