September 6, 1889.] 



SCIENCE. 



shells, curiosities 01 

 W. F. Lerch, No. 308 East Fourth St., 



Exchanges. 



[Exchanges are Inserted for subscribers free of charge. 

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

 York.] 



Shells and 

 minerals address 

 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. 



100 botanical specimens and analyses for exchange. 

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

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

 specimens and curiosities for the same. Scientific corre- 

 SDoridence 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 

 (author *' Young Fossil-Hunters ")> 1033 Kentucky 

 Street, Lawrence, Kan. 



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 mineralogical specimens, properly classi- 

 fied. — Charles E. Fnck, 1019 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. 



detail, showing plant, 

 pistils, etc. — Alda M. 



My drawings in botany 

 leaves, flowers, seed, 

 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 

 17th Street, Philadelphia, Penn. 



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

 lection. — W. C. Thompson, 612 East 141st Street, New 

 York, N.Y. 



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

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

 Chapter 755, 10 Hodges Avenue, Taunton^ Mass. 



Any one who has a botanical box in good condition will 

 please write. I will offer about 10 specimens in ex- 

 change. — C. B. Haskell, Box 826, Kennebunk, Me. 



Lead, 2inc, mundic, and calcite. — Lulu Hay, secre- 

 tary Chapter 350, Carthage, Mo. 



mxKJSi 



HORSFORD'S ACID PHOSPHATE. 



Prepared according to the d 



of Prof. E. N. HoESFOR 



A teaspoonful of the Acid Phosphate in a tumbler of water, and sweetened 

 to the taste makes a delicious, healthful and invigorating drink. To it may be 

 added such stimulants as the person is from necessity or habit accustomed to 

 take, and its action will harmonize therewith. 



It is an agreeable and healthy substitute for Lemons and Lime Juice in the 

 preparation of all acidulated drinks. Allays the thirst, aids digestion, and relieves 

 the lassitude so common in midsummer. 



Dr. J. S. NiLES, Pownal, Vt., says : 



" Excellent as a tonic, and refreshing as a substitute for lemonade." 



Dr. T. C. Smith, Charlotte, N. C, says : 



"An invaluable nerve tonic, a delightful beverage, and one of the best restorers when the 

 energies flag, and the spirits droop. 



Descriptive pamphlet free on applit 



Sumford Chemical Works, Providence, B. I. 



BEWARE OF SUBSTITUTES AND IMITATIONS. 



CAUTION:— Be sure the word " Horsford's" Is printed on tUe label. All otlters 

 are spurious. Never sold In bulk. 



GUARANTY INYESTMENT COMPANY 



CAPITAL $250,000. 



7°|o Guaranteed Farm Mortgages 7' 







The Company sends each year to Kansas and Nebraska for the pur- 

 pose of examining its loans and methods of business a 



COMMITTEE OF INVESTORS. 



The Committee for 1889 visited Fifty counties in the two States, ex- 

 amined over 100 farms on which loans had been made and reported 

 every one to be SAFE. 



The Company will be glad to send to any address the Report of the 

 Committee which presents a very interesting statement of the general 

 development of Kansas and Nebraska. 



A large number of loans equally as good as any examined by the 

 Committee are always on hand for sale. 



AMress for Monthly Bulletin and Investors' Committee Report 



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



