Individual Specimens of rarest and choicest variety for collectors and 

 museum's. 



Systematic Collections, comprising carefully arranged and accurately 

 labelled type specimens of all common or important species, especially 

 adapted for educational work, are sold at very low prices. 



Special Collections, illustrating the various ores ; the uses of minerals ; 

 their physical and chemical character, etc., etc. 



Minerals for Laboratory and experimental purposes at lowest rates by 

 the pound. 



Detached Crystals in great variety and perfection for students and 

 investigators. 



Microscopical Mounts of exceeding beauty. 



THE LARGEST AND MOST VARIED STOCK OF MINER- 

 ALS IN THE WORLD — not an idle boast, but an undisputed state- 

 ment of fact, supported by repeated comparisons. 



Owing to the enormous stock accumulated, our facilities for furnishing 

 mineralogical material of every kind and quality are unequalled. In no 

 other establishment in the world are such a number and variety of rare and 

 valuable specimens displayed for sale. Our collections for educational pur- 

 poses are unexcelled for practical value, attractive appearance and low price. 



Orders receive our prompt attention. 



If you contemplate the purchase of a collection for college, school or pupil 

 it will pay you to write us. 



Illustrated Catalogue 128 pp., containing complete price lists with des- 

 cription of collections, etc.; and all circulars free. Send for our last " Sup- 

 plement " descriptive of recent important arrivals. 



SCIENTIFIC BOOKS, PAMPHLETS, PAPERS, PROCEEDINGS 

 AND TRANSACTIONS OF SOCIETIES, JOURNALS, ETC. 



An immense stock. Catalogues are published in all branches of Natural 

 and Physical Sciences, such as Geology, Mineralogy, Mining, Botany, Eth- 

 nology, Zoology, General Science, Microscopy, Physics, Electricity, Chemistry, 

 Agriculture, Education, and Medicine in all branches. 



All American books in print furnished on order, and foreign books 

 obtained within a few weeks. 



We make a specialty of Papers published in the Proceedings and Transac- 

 tion of Scientific Societies, and many of the scientific men of the country, 

 recognizing the advantage of such an exchange, have placed copies of their 

 papers in our hands for sale. With our ever-exchanging and constantly 

 increasing stock, we can supply old and recent literature on all scientific sub- 

 jects, and list of books and papers referring to special subjects will be fur- 

 nished gratis on application. 



Dr. A. E. FOOTE, 



Warren M. Foote, Manager. 



1224-26-28 North. ir-orty-IPirst Street, 

 PHILADELPHIA, PA., U. S. A. 



Established 1876. 



