SCIENCE. 



CLUB RATES. 



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.. 



Subscrip- 

 tion 



With 



SCiKNCE. 



$2.00 



$5.50 



3.00 



• 6.26 



4.00 



7.20 



6.00 



8.50 



1. 00 



4.70 



3.00 



6.70 



1. 00 



4.80 



4-»5 



7.00 



1. 00 



4-75 



2.00 



5-5° 



4.00 



7.00 



1.60 



5-25 



1-5° 



5-2S 



1.50 



5.20 



3.00 



6.25 



4.00 



7.00 



4.00 



7.00 



5.00 



8.25 



4.00 



7.00 



4.00 



7.20 



4.00 



7.20 



1.50 



5.20 



3.00 



6.2s 



5.00 



8.00 



Subscrip 

 tion. 



Iron 



Journal of the Telegraph 



London Lancet _ 



Magazine ot American History 



Mining and Scientific Press 



Nature 



N. Y. Medical Journal 



New England Journal of Education 



North American Review 



Operator 



Popular Science Monthly 



Sanitary Kngineer 



Practical American 



Pacific Rural Press 



Scribner's Monthly 



Science Observer 



Scientific American 



" " Supplement 



" with Supplement 



Southern Medical Record 



Student 



St. Nicholas 



Young Scientist 



7-5° 



9-34 



2.00 



5-5° 



5.00 



7.50 



5.00 



8.00 



4.00 



6.40 



6.00 



9-15 



4.00 



7.00 



3.00 



6.40 



5.00 



7.75 



1. 00 



4.80 



5.00 



8.00 



3.00 



6.50 



1.50 



5.00 



4.00 



7.00 



4.00 



7.20 



.50 



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 



• 50 



4-3° 



Dr. Scott's Electric Hair Brush. — A good hair brush cannot be bought for 

 much less than the sum tor which Dr. Scott's electric brush can be secured. 

 This brush, aside from the curative properties claimed for it, is a well made arti- 

 cle, handsome in appearance and first-class in every respect. It is not a metallic 

 brush, but is made of pure bristles. Its electrical qualities are very strong, and 

 will manifest themselves by causing the needle of a magnetic compass to vibrate 

 even with a thick book on the top of a table intervening. Violent vibrations of 

 the needle can be caused by passing the brush quickly back and forth within 

 four or five inches of the compass. It is claimed for this brush that its use will 

 cure headaches and neuralgia, will remove dandruff, and in most cases will pre- 

 vent the hair from falling or turning gray. In support of this claim many testi- 

 monials from responsible persons are adduced. Evidently its use would be of 

 great benefit wherever electricity would prove beneficial, and could not in any 

 event result in harm. — Boston Journal, May 28, 1881. 



SCIENCE 



A WEEKLY JOURNAL OF SCIENTIFIC PROGRESS. 



Vol. II, No. 70, 



October 29, 1 881 



CONTENTS. 



The Warner Prizes (Edit.) ; On the Discoveries of the past Half-Century Relating to 

 Animal Motion, by Dr. J. Burden-Sanderson ; Jurassic Birds and Their Allies, by 

 Prof. O. C. Marsh ; The Limited Biological Importance of Synthetic Achievements 

 in Organic Chemistry, by Prof. Albert B. Prescott ; Terra del Fuegians (illustrated); 

 On a New Sys'em of Blow-pipe Analysis ; Astronomy ; Drawing of Comet b, 1881, 

 by Prof. Sharpless; Correspondence; Letter on the Ononid Meteors, by Prof. 

 Sharpless ; Dr. H. Raymond Rogers and his Critics ; Notes ; the Late Charles A. 

 Spencer; Dr. Draper's Meteorological Report, &c., &c. 



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