October 25, 1889.] 



SCIENCE. 



Exchanges. 



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



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

 York.l 



Morris's "British Butterflies," Morris's ** Nests and 

 Esgs of British Birds." Bree's " Birds of Europe" (all 

 ■colored plates), and other natural hisiory, in exchange 

 for Shakesperiana ; either books, pamphlets, engravings, 

 or cuttings. — J. D. Barnett, Box 735, Stratford. Canada. 



I have anodovta 0/ alina (Weatherby), and many 

 ■olher species of shells from the noted Koshkonong Lnke 

 and vicinity, also from Western New York, and fossils 

 from the Marcellus sha'e of New York, which 1 would be 



flad to exchange for specimens of sci'-ntific value of any 

 ind. I would also like to correspond w 

 ■ested in the collection, sale, or exchange 

 D. E. Williard, Albion Academy, Albloi 



Will exchange "■ Princeton Review ' 

 Miller's works on geology ar.d other sc 

 back numbers of " The Auk," "Ameri 

 ■or other scientific periodicals or books. 

 Keck, Chardon, Ohio. 



A collection of fifty unclassified shells for the best offer 

 in bird skins ; also skins of California birds for those of 

 birds of other localities. Address Th. E. Slevin, 2413 

 Sacramento St., San brancisco, Cal. 



I have forty varieties of birds' eggs, side blown, first 

 class, in sets, with full data, which I will exchange for 

 books, scientific journals, shells, and curios. Write me, 

 stating what you have to offer. — Dr. W. S. Strook, 

 Eernadotte, Fulton County, 111. 



" I wish to exchange LepidoPier< 

 eastern and southern states. I will 

 for those found in other localities 

 Volga, Brookings Co., Dakota. 



Shells and curiosities for marine shells, curiosities or 

 minerals address W. F. Lerch, No. 308-East Fourth St., 

 Davenport, Iowa. 



I want to correspond and exchange with a collector of 

 beetles in Texas or Florida. — Wm. D. Richardson, 

 P.O. Box 223, Fredericksburg, Virginia. 

 alyi 



.th persons inter- 

 ,f Indian rehcs.- 

 , Wis. 



for 1883, Hugh 

 entific works, for 

 can Naturalist," 



Write. — J. M. 



'ith parties in the 

 id western species 

 -P. C. Truman, 



Scientific 



) cabinet 

 Ashta 



100 botanical specimens and a 

 Send list of those desired and thi 

 nished, and receive a similar list in rel 

 specimens and curiosities for the same 

 suondence solicited. — E. E. Bogu; 

 'County, O. 



I will sell to chapters or individual members of the 

 Agassiz Association, 25 fine specimens of fossi! plants 

 from the Dakota group (cretaceousi, correctly named, for 

 $2.^0. Send post-office order to Charles H. Sternberg 

 ^author "Young Fossil-Hunters"), 1033 Kentucky 

 Street, Lawrence, Kan. 



CALENDAR OF SOCIETIES. 

 Biological Society, Washington. 



Oct. 19. — C. Hart Merriam, " Description 

 of a New Spermophile from the Painted 

 Desert, Arizona;" Theo. Holm, " The An- 

 cestors of Liriodendron tulipifera;" Theo. 

 Gill, "On the Dactylopteroidea." 



Engineers' Club, Philadelphia. 



Oct. 5. — Mr. George N. Bell presented a 

 paper upon " The Development of Suburban 

 Property," in which it was clearly shown 

 that this cannot be done to the best advan- 

 tage without the assistance of systematic and 

 intelligent engineering and landscape-gar- 

 dening. The paper and kindred subjects 

 were discussed by Professor Arthur Beards- 

 ley and Messrs. T. M. Cleemann and How- 

 ard Murphy. 



Western Society of Naturalists. 



The Western Socie'y of Naturalists held 

 its second annual meeting in the University 

 of Wisconsin, at Madison, Wis., Wednesday 

 and Thursday, Oct. 24 and 35, beginning 

 Wednesday morning at 9.30 a.m. The 

 president of the society. President T. C. 

 Chamberlain, delivered his address, " The 

 Method of Multiple Working Hypotheses in 

 Investigation, in Instruction, and in Citizen- 

 ship," on Wednesday evening. The meeting 

 was largely devoted to a discussion of 

 methods of investigation. 



PATENT WRENCH 

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 I better than other so-called Emulsions. 

 A wonderful nesh producer. 



I Scott's Emulsion 



j Tliere are poor imitations. Get the genuine} 



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eUAMNTY INYESTMENT COMPANY 



CAPITAL $250,000. 



Hon. ALBERT H. HORTON (Cbief Instice, Kansas Snpieme Contt), Topeka, Kan., Pres't. 



7°|o Guaranteed Farm Mortgages 7' 







The Company calls the special attention of Investors to the following points : 



I. All loans guaranteed and interest payable semi-annually at the Importers' & Traders' National Bank, New 

 York. 



II. Unusual fulness of information, not only about the security itself, but about the general development of the 

 section where the farm is located. 



III. An examination each year of the general business of the Company and the Mortgages themselves by a COM 

 MITTEE OF INVESTORS sent for the purpose. 



IV. Many hundred Mortgages taken and NOT A SINGLE FORECLOSURE. 



V. Exhibitions in New York at frequent intervals, of Kansas and Nebraska Farm ^Products. The Exhibition at 

 the American Institute in the fall of 1888, received the HIGHEST A WARD of superiority. 



VI. Monthly Bulletins giving full information about all Mortgages offered for sale. 



Address for Monthly BuUefin and Investors' Cani^nittee Report for 18S8, 



HENRY A. RILEY, General Eastern Manager, 191 Broadway, N.Y. 



