SCIENCE. 



CLUB RATES. 



>s 



Analyst 



Appleton's Monthly 



American Naturalist 



American Journal of Science 



American Journal of Microscopy 



American Machinist 



American Monthly Microscopical Journal 

 American Manufacturer and Iron World- 

 Boston Journal of Chemistry 



Chicago Medical Review 



Chicago Field 



Druggist 



Druggists' Circular 



Educational Monthly (Barnes ) 



Engineering News 



Engineering and Mining Journal 



Education 



Engineering Magazine 



Harper's Magazine 



Harpers Weekly 



Harper's Bazar 



Harper's Young People 



Humboldt Library 



International Review 



$2.00 

 3.00 

 4.00 

 6.00 

 1. 00 

 3.00 

 1. 00 

 4-25 

 1. 00 

 2.00 

 4.00 

 1.60 

 1-5° 

 1.50 

 3.00 

 4.00 

 4.00 

 5.00 

 4.00 

 4.00 

 4.00 

 1.50 

 3.00 

 5.00 



With 



Science. 



$5.50 

 6.26 

 7.20 

 8.50 

 4.70 

 6.70 

 4.80 

 7.00 



4- 75 



5- 5° 

 7.00 



S-2S 

 5.2S 

 5.20 

 6.25 

 7.00 

 7.00 

 8.25 

 7.00 

 7.20 

 7.20 

 5.20 

 6.25 

 8.00 



Iron 



Journal of the Telegraph 



London Lancet 



Magazine of American History 



Mining and Scientific Press 



Nature 



N. Y. Medical Journal 



New England Journal of Education 



North American Review 



Operator. 



Popular Science Monthly 



Sanitary Engineer 



Practical American 



Pacific Rural Press 



Scribner's Monthly 



Science Observer. 



Scientific American 



" " Supplement 



" with supplement- 



Southern Medical Record 



Student. 



St. Nicholas 



Young Scientist 



Subscrip 

 tion. 



With 

 Science. 



7.50 



9-34 



2.00 



5-5° 



5.00 



7.50 



5.00 



8.00 



4 00 



6.40 



6.00 



9-iS 



4.00 



7.00 



3.00 



6.40 



5.00 



7-75 



1. 00 



4.80 



5.00 



8.00 



3.00 



6.50 



1-5° 



S.oo 



4.00 



7.00 



4.00 



7.20 



■5° 



4.40 



3.20 



6.56 



5.00 



8.00 



7.00 



9.60 



2.00 



5-4° 



1. 00 



4-75 



3.00 



6.40 



• 5° 



4-3° 



International Scientists' Directory. 



THE INTERNATIONAL SCIENTISTS' DIRECTORY for 

 1881-2, contains the names and addresses of from 15,000 to 20,000 

 Scientific men and amateurs in all parts of the world, together with 

 their special branches of Science, and other items of interest relating 

 to collections, duplicates, desiderata, etc. of each. 



This is the first work of its kind ever attempted, and it will be 

 found of great value to all who are interested in any department of 

 Science. Price, in paper, $2.00. In cloth, $2.50. Sent post-paid 

 on receipt of price. S. E. CASSINO, Publisher, 



32 Hawley Street. Boston, Mass. 



SCIENCE 



A WEEKLY JOURNAL OF SCIENTIFIC PROGRESS. 



Vol. II, No. 74, - 



November 26, 1881 



CONTENTS. 



The Satellites of Mars (Edit.) ; Theory of the Moon's Motion (Edit.) ; New York 

 Academy of Sciences, October 31, 1881 ; The Ameriean Chemical Society ; On 

 the Nature of the Diphtheritic Contagium ; Solar Parallax ; Ephemeris of the 

 Satellites of Mars for the Opposition of 1881 ; Elements of Quarternious ; Large 

 Telescopes ; On Maximum Synchronous Glaciation ; Glucose ; Meteorological 

 Report of Prof. D. Draper; etc., etc. 



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 Nickel Plated Single Lamps $5.00 each. 



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