^^ 



n 



NC 



A WEEKLY NEWSPAPER OF ALL THE ARTS AND SCIENCES. 



PUBLISHED BY N. D. C. HODGES, 874 BROADWAY, NEW YORK. 



Tkxth Yeae. 

 Vol.. XX. No. 493. 



JULY 15, 1892. 



"7ff( 



Contents. 



The Chemistry of Soils. R. Ellsworth 



Call 29 



CuREEKT Notes on Antbropologt. — 



X. Edited bij D. G. Brinton 30 



Notes and News 31 



Lion Breeding. V. Ball 34 



The Purification of Water et Chemi- 

 cal Treatment Willis G. Tticker . 34 

 Letters to the Editor. 



American Weeds. Gerald McCarthy . 38 

 Some Remarks on Professor Cyrus 

 Thomas's Brief Study of the 



Palenque Tables. Ed. Seler 38 



A Grape Vine Produces Two Sets of 

 Leaves During the Same Season. 



C. H. Turner 39 



Book Reviews, 



The Stone, Bronze and Iron Ages . . 39 

 Journal of Proceedings of the Royal 



Society of New South Wales 39 



Among the Publishers- 39 



Entered at the Posi-Offlce of New York, N.Y., as 

 .Snoond -Class Mail Matter. 



THE LABRADOR COAST. 



A JOURNAL OF TWO SUMMER CRUISES 

 TO THAT REGION. 

 WITH NOTES ON ITS EARLY DISCOV- 

 ERY, ON THE ESKIMO, ON ITS PHY- 

 SICAL GEOGRAPHY, GEOLOGY AND 

 NATURAL HISTORY, TOGETHER WITH 

 A BIBLIOGRAPHY OF WORKS, ARTI- 

 CLES. AND CHARTS RELATING TO 

 THE CIVIL AND NATURAL HISTORY 

 OF THE LABRADOR PENINSULA. 



By ALPHEUS SPRING PACKARD, M.D., Ph.D. 



Sportsmen and ornithologists will be interested in 

 the list of Labrador birds by Mr. L. W. Turner, 

 which has been kindly revised and broujiht down to 

 date by Dr. J. A. Alien. Dr. S H. Scudder has con- 

 tributed the list of butterflies, and Prof. John 

 Macoun, of Ottawa, Canada, has prepared the list of 

 Tabrador plants. 



Much pains has been taken to render the bibliog- 

 raphy complete, and the author is indebted to Dr 

 tranz Boas and others for several titles and impor- 

 t *Qt suggestions ; and it is hoped that this feature uf 

 thebook will recommend U to collectors of Anieri- 



It is hoped that the volume will serve as a guide 

 to the Labrador coast for the use of travellers, 

 yachtsmen, sportsmen, artists, and naturalists, as 

 well as those interested in geographical and histori- 

 cal studies. 



513 pp., 8°, $3.50. 



N. D. C. HODGES, 



874 BROADWAY, NEW YORK. 



Slngle Copies, Ten Cents. 

 •'"/Vfeiro ly^^^ Year, in Advance. 



Ei)e Scientific ^mtcitan 



FOR, 1892. 

 The Most Popular Seientiftc Paper in the World 



WEEKLY, $3.00 A YEAR; $1.50 SIX MONTHS. 



This unrivaled periodical, which is now in its forty-sevenlli year, continues to 

 maintain its high reputation for excellence, and enjoys the largest circulation ever attained 

 by any scientific publication. Every number contains sixteen large pages, beautifully 

 printed, elegantly illustrated; it presents in popular style a descriptive record of the most 

 novel, interesting, and important advances in Science, Arts, and Manufactures. It shows 

 the progress of the World in respect to New Discoveries and Improvements, embracing 

 Machinery, Mechanical Works, Engineering in all branches, Chemistry, Metallurgy Elec- 

 tricity, Light, Heat. Architecture, Domestic Economy, Agriculture, Natural History, etc. 

 It abounds with fresh and interesting subjects for discussion, thought, or experiment. It 

 tends to improve the mind; encourages to self exertion, activity, and development; fur- 

 nishes hundreds of useful suggestions for business, and for simple, light, and profitable 

 occupations. It promotes Industry, Progress, Thrift, and Intelligence in every community 

 where it circulates 



The Scientific Amemcajst should have a p'ace in every Dwelling, Shop, Office School 

 or Library. Workmen, Foremen, Engineers, Superintendents, Directors, Presidents' 

 Officials, Merchants, Farmers, Teachers. Lawyers, Physicians, Clergymen — People in every 

 walk and profession in life, will derive satisfaction and benefit from a regular readin" of 

 The Scientific American. " 



As an instructor for the young it is of peculiar advantage. Try it. — Subscribe for 

 yourself — it will bring you valuable ideas; subscribe for your sons-^it will make thera 

 manly and self-reliant; subscribe for your workmen — it will please and assist their labor- 

 subscribe for your friends - it will be likely to give them a practical lift in life. 



Terms, .$3 00 a year; Sl-SOsix months. Specimen copies free. Remit by Postal Order 

 or Check. MUNN & CO., Publishers, 



361 Broadway, New York. 



Cfje Scientific Hmerican Supplement. 



The Scientific American Supplement is a separate and distinct publication from The 

 Scientific American, but is uniform therewith in size, every number containing sixteen 

 large pages. The Scientific American Supplement is published weekly, and includes a 

 very wide range of contents. It presents the most recent papers by eminent writers in all 

 the principal departments of Science and the Useful Arts, embracing Biology, Geology 

 Mineralogy, Natural History, Geography, Archaeology, Astronomv, Chemistry. Electricity! 

 Light, Heat. Mechanical Engineering, Steam and Railway Engineering, Mining Ship- 

 Building. Marine Engineering, Photography, Technology. Manufacturing "Industries', Sani- 

 tary Engineering, Agriculture, Horticulture, Domestic Economv, Biography. Medicine, 

 etc. A vast amount of fresh and valuable information pertaining to these and allied sub- 

 jects is given, the whole profusely illustrated with engravings. 



The nioxt important Engineering IForAs, Mechanisms, and Manufactures at home and 

 abroad are represented and described in the Supplement. 



Price for tlie !»u|)pleineiit, SS a Year, or one copy of The Scientific 

 American and one copy of Supplement, both mailed for one year for $7. Address and 

 remit by Postal Order or Check. MUNN & CO., 



361 Broadway, New York, Publishers Scientific American. 



SCIENTIFIC BOOKS 



Of every kind promptly furnished by Munn & Co., Publishers of The Scientific American, 

 361 Broadway, New York. 



Catalogue of Valuable Papers Contained in the Sciintifio American Supplement 



SENT FREE TO ANY ADDRESS. 



This Catalogue, covering 30 large quarto pages, gives the title and supplement number 

 for nearly two tnouMind i-nluable and inij)ortant Scientific Papers or Essays. If you wish to 

 find the latest published information concerning any new process, any branch of Engineer- 

 ing or Mechanical work, any Industrial Art. any Manufacture, or anv Scientific Subject or 

 Discovery, cousult this Catalogue Sent free. MUNN & CO.." Publishers, 



361 Broadway, New York. 



To Newsdealers.— We furnish all the numbers of the Supplement Thfij are never 

 out of print. If your News Companies give anv excuse for not supplying you. send your 

 order to us by mail, and we will see that it is promptly filled. MUNN & CO. 



PATENTS. 

 Any person who has made an invention, and desires to know whether it is probably 

 new and patentable, can obtain advice concerning the same, free of charge, by writing to 

 Munn & Co., publishers of The Scientific American, 361 Broadway, New York. For 

 the past forty years, Messrs. Munn & Co. have carried on, as a branch of their business, 

 the preparation and obtaining of patents. Many of the most reliable inventions have been 

 patented through their Agency. Hand-Book about Patents sent free Address, 



MUNN & CO.. 361 Broadway, New York. 



