THE YOUNG OOLOGIST. 



)t{ THE NINETEENTH YEAR. )t( 



THE AMERICAN NATURALIST. 



A Popular Illustrated lontWy Magazine of Natural HistorF aad Travels. 



ANNOUNCEMENT FOR 1885. VOLUME XIX. 



This journal of popular Natural Science is published by Messrs. McCalla & Stavely, Philadelphia, Pa., 

 under the editorial management of Dr. A. S. Packard, Jr., and Prof. E. D. Cope, with the assistance of 

 eminent men of science. The typographical dress and illustrations which have heretofore given character to 

 this' magazine will be sustained, and it will be of a thoroughly popular nature, so as to interest the general 

 reader a? well as the young naturalist It will continue to be a journal of science education and for the use of 

 science-teacher., The eighteenth volume was double the size of the earlier volumes ; and for variety, interest 

 and freshness of scientific news, it is'claimed that the "Naturalist" is without a rival. Each number of the 

 " Naturalist" contains carefully written original articles on various scientific subjects, and, in addition, eleven 

 departments^Recent Literature, Geography and Travels, Geology and Palaeontology, Mineralogy, Botany, 

 Entomology, Zoology, Physiology, Psychology, Anthropology, Microscopy and Histology. The department 

 of Botany is edited by Prof. C. E. Bessey, that of Microscopy is edited by Prof. C. d. Whitman, that of 

 Mineralogy is edited by Prof. H. C Lewis, and that of Physiology by Prof. Henry Sewall, while the depart- 

 ment of Geography and Travels is edited by W, Ni Lockington. Prof. Otis T. Mason will continue his 

 monthly, summaries of Anthropological News, and will edit the department of Anthropology. We add this 

 year a department of Embryology under one of our ablest investigators, Mr. Jno. A. Ryder; of the Smith- 

 sonian Institution. Arrangements have been made to report the Proceedings of Scientific Societies with 

 promptness. Particular attention will be given to microscopical and histological discoveries, methods of 

 microscopical research, new instruments, methods of cutting and staining sections, etc. The series of 

 illustrated monographs on North America fossil vertebrates, by Prof. Cope, will be continued. The attention 

 of publishers and teachers is called to the critical notices of standard scientific books, to which especial atten- 

 tion has been given the past year, and will be given during the present year. Original articles or notices by 

 ever one hundred of our leading naturalists have appeared in the volumes for i8Si, 1882, 1883 and 1884_ 



SUBSCEIPTIOIT PRICE, $4.00 PER ANNUM, IN ADVANCE. 



Remittances by mail shonldbe sent by a money-order, draft on Philadelphia or New York, or registered letter, to 



McCALLA & STAVELY, 



237-9 DOCK STREET, PHILADELPHIA. PA. 



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I. W. STILWELL, DEADWOOD, D. T. 



WHOLESALE AND RETAIL DEALER IN 



BLACK HILLS CABINET MINERALS. 



I keep a large stock, and offer you following list, all Black Hills minerals. 



Galena Ore — Silver-bearing ; Tin Ore — Fine showy formation, Pyrite of Iron— cont'g Antimony, 



gold-bearing. Quartz — milk white, pure. Quartz — rose, a beautiful pink, Quartz — Crystal, 



Quartz — transparent, resembling Ice, Mica— in white spar and quartz. Mica — Schist — ^ 



grey and white. Mica — Plate —natural state, uncut. Gypsum —pure white, chalky. 



Gypsum— crystalized, an odd variety, Satin Spar or Selenite — very handsome. 



Fern Porphyry (or Forest Rock) — yellow rock with fine fern impressions. Tourmaline — massive, 



Tourmaline — large prismatic single crystals, black. Tourmaline — crystals in white quartz, 



Dog Tooth Spar —white, in clusters, Rock Crystals — mass calcite, crystalized on rock, 



Calc Spar — translucent, Calcite —translucent in fingers, crystalized, Petrified Pine- 



vs'ood and Moss, Plain Gold and Silver Ores, Fossil Fish— fish body petrified, 



from the " Bad Lands" of the Cheyenne river, 3 in. 50c. ; 4 in. 75c. ; 5 in. $1 each; Fossil shells — 



25 cents to $1.00 and up. Feldspar — white. Garnet Slate — surface warted with garnets, 



Smoky Quartz, Very Black Mica Plates, Free-Gold specimen, from $1.50 up, according 



to richness. Moss Agates, from 5c. to $3.00 each, Asbestus — fibrous, from 10 to 25c. 



per specimen, Stream Tin — coarse, grain, assays, 58 per cent., 5c. per ouiice. 



Specimens of any of the above, except when priced otherwise, 4c. per ounce, postpaid. 



A specimen of quartz ijxl J in., will weigh about 2 ozs; one 2jx2^, about 5 ozs. Any size 



desired, furnished. Ten pounds of assorted minerals, $3.00, purchaser to pay express 



charges. Everything on the above list postpaid for prices named. Write for 



price list of minerals. Colleges and museums special rates. Refer to 



banks and merchants of Deadwood. Address, 



[Mention "Young Oologist.] L. W. STILWELL, DEADWOOD, D. T. 



