14 Advertising Sheet, fyc. 



FOSSIL FOOTMARKS. 



The residence of the undersigned being in the vicinity of many 

 localities of ihe New Red Sandstone of Connecticut River, in 

 which exist the perfect Tracks of Birds and also the Fossil Impres- 

 sions of Fishes, he is enabled to secure them as they are quarried, 

 and will furnish them to Geologists whenever it is practicable, for a 

 reasonable compensation. As it will only be possible to obtain a 

 limited supply, he will furnish as a substitute, Plaster Models of all 

 the varieties of Ornithichnitcs and Sauroidichnites, of which there 

 are nearly forty, to all who may apply. These models will be cast 

 in plates of uniform size, colored to conform to nature, and neatly 

 packed in a box. They will be accompanied with a Descriptive 

 Catalogue and sent according to direction for $10. ! 



James Deane. 



Greenfield, Mass., October, 1842. 



1 owe much to the kindness and zeal of Dr. Deane in procuring 

 for me and my friends suits of these interesting fossil foot-marks, and 

 I repose full confidence in Dr. Deane's discrimination and fidelity, 



B. SlLLlMAN- 



Prof. SILXmAN 9 § ADDRESS 



BEFORE THE 



AX.UMNX OF VALE COLLEGE, 



August 17th, 1842 — pp. 44, 8vo. — price 25 cents, may be obtained of Wiley & 

 Putnam, 161 Broadway, New York, and B. L. Hamlen, New Haven, Conn. 



Notice to Agents of the American Journal of Science. 



Hereafter one dollar per number is all that will be allowed on 

 account, for numbers of this Journal returned in good order from 

 agents, except by special agreement. 



Entire sets of the American Journal of Science and Arts, from 

 its commencement to the present time, can be had of the subscri- 

 bers in numbers or bound. B. h B. Silliman. 



New Haven, June 23, 1841. 



Scale of charges on the Advertising Sheet for the American 



Journal of Science. 



15 lines or one third of a page, ... . 



One half of a page, --...... 



One page, - - - . . „ . m m m 



Charges on the cover.— 15 lines or one third of a page, 



One half of a page, - 



One page, 



For every insertion after the first, one half the above rates. Advertisements 

 must be accompanied with directions as to the number ot insertions. 



$2 

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5 



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4 



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