DISTRICT OF CONNECTICUT, ss. 



********* BE IT REMEMBERED, That on the eighteenth day of February in 



* L. S. ! tne nft y fourth year of the Independence of the United States of Amer- 



* ica, BENJAMIN SILLIMAN, of the said District, hath deposited in this 



********* O ffi ce the title of a Book, the right whereof he claims as Author in the 



words following, to wit : 



" Elements of Chemistry, in the order of the lectures given in Yale College. By 

 Benjamin Silliman, Professor of Chemistry, Pharmacy, Mineralogy and Geology. 

 In two volumes." 



In conformity to the Act of Congress of the United States, entitled, " An Act for 

 the encouragement of learning, by securing the copies of Maps, Charts, and Books, 

 to the authors and proprietors of such copies, during the times therein mentioned." 

 And also to the Act, entitled, "An Act supplementary to an Act, entitled, 'An Act 

 for the encouragement of learning, by securing the copies of Maps, Charts, and 

 Books, to the Authors and Proprietors of such copies during the times therein men- 

 tioned,' and extending the benefits thereof to the arts of designing, engraving, and 

 etching historical and other prints." 



CHARLES A. INGERSOLL, 



Clerk of the District of Connecticut. 

 A true copy of Record, examined and sealed by me, 



CHARLES A. INGERSOLL, 



Clerk of the District of Connecticut, 



