IQO 



SCIENCE. 



[Vol. XIV. No. 345 



Exchanges. 



[Exchanges are inserted for subscribers free of charge. 

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

 York.] 



*' I wish to exchange Lepidoptera with parties in the 

 eastern and southern states. I will send western species 

 for those found in other localities." — P. C. Truman, 

 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. 



lOO botanical specimens and analyses for exchange. 

 Send list of those desired and those which can be fur- 

 nished, and receive a similar list in return. Also cabinet 

 specimens and curio.^ities for the same. Scientific corre- 

 spondence solicited. — E. E. Bogue, Orwell, Ashta. 

 County, O. 



I will sell to chapters or individual members of the 

 Agassiz Association, 25 fine specimens of fossil plants 

 from the Dakota group (cretaceous), correctly named, for 

 $2.50. Send post-office order to Charles H. Sternberg 



One mounted single achromatic photographic lens for 

 making 4X5 pictures, in excellent condition ; also one 

 ** new model " double dry-plate holder (4" X 5°), for fine 

 geological or mineralugical specimens, properly classi- 

 fied. — Charles E. Fnck, loig West Lehigh Avenue, 

 Philadelphia, Penn. 



Drawings from nature — animals, birds, insects, and 

 plants — to exchange for insects for cabinet; or I will 

 send them in sets of ten each for ten cents in stamps. 

 My drawings in botany are in detail, showing plant, 

 leaves, flowers, seed, stamens, pistils, etc. — Alda M. 

 Sharp, Gladbrook, lo. 



The undersigned wishes to make arrangements for the 

 exchange of Lepidoptera of eastern Pennsylvania for 

 those from other localities. All my specimens are named 



' and in good condition. — Charles S. Westcott. 613 North 



i 17th Street. Philadelphia, Penn. 



California onyx, for minerals and coins not in my col- 

 lection. — W C. Thompson, 6r2 East 141st Street, New 

 I York, N,Y. 



I A few first-class mounted birds, for first-class birdj' 

 eggs of any kind in sets. — J. P. Babbitt, secretary 

 Chapter 755, ro Hodges Avenue, Taunton, Mass. 



Wants. 



A YOUNG MAN can have lucrative engage- 

 ment, not only a fixed salary, but accord- 

 ing to his work accomplished in travelling for 

 Science. A personal interview invited. 

 N. D. C. HODGES, 



47 Lafayette Place, New York. 



LIGHTNING. — Concise descriptions of 

 the effects of lightning- discharges are de- 

 sired. Stale whether the object struck was pro- 

 vided with a lightning rod, the character of the 

 rod, and the way in which it was set up. Be- 

 ginning at the top, describe briefly the effects. 

 State whether there was any smoke or dust 

 raised, and whether there was any odor." Any 

 reports of recent and of especially interesting 

 discharges will be published in Science. — Sci- 

 ence, 47 Lafayette Place. New York. 



DAFT ELECTRIC LIGHT COMPANY. 



Power Stations. 



Electric Railways. 



Stationary Motors 

 'I2 to 100 H.P. 



Car Motors 15 to 

 250 H.P. 



Executive Office, 1 15 Broadway., N.Y. 



FACTORY, JERSEY CITY, N. J. piease Mention Science.' 



GUARANTY INYESTMENTCOMPANY 



CAPITAL $250,000. 



Hon. ALBERT H. HORTON (Chief Justice, Kansas Snpreme Conrt), Topeka, Kan., Pres't. 



71 Guaranteed Farm Mortgages 71 







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 Bulletin and Investors* Committee Report for 1888, 



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



