60 Mis. No. 48. 



Tlie sale of the work must necessarily be limited, and can not possibly 

 pay the cost of preparing it for the press, or of its publication, and I think 

 I am not deceived in the impression, that few works in the literary class 

 are more worthy of the patronage of the Smithsonian Institution, or more 

 in accordance with its original design. 



I am, dear sir, with great respect and regard, very truly, yours, 



JARED SPARKS. 

 Joseph He>7ry, LL.D., 



Secretary of Smithsonian Institution. 



Sejvate U. S., August 4, 1S4S. 



Dear sir: Mr. Stevens's prospectus of his Bibliographia Americana 

 has been submitted to the Joint Committee on the Library. They approve 

 his plan, and thinking it worthy of such encouragement as they can give, 

 have subscribed two hundred and fifty dollars, on the terms mentioned in 

 the prospectus, it being also understood that for this sum he will catalogue 

 such books on America, in the Library of Congress, as are within the 

 period proposed by him. 



Very respectfully, your obedient servant, 



J. A. PEARCE. 



Antiquarian Hall, 

 Worcester , September 23, 1S4S. 



Dear sir: I addressed 'a line to Mr. Stevens some weeks since, in- 

 forming him that the council of the American Antiquarian Society would 

 subscribe two hundred and fifty dollars towards the expense of preparing 

 his Bibliographia Americana. Yesterday I received his acknowledge- 

 ment, in which he expresses his satisfaction with the amount, and states 

 that the work meets with every encouragement he could wish; , the sub- 

 scription having nearly reached the sum of five thousand dollars. 



I presume this contribution by the council of the Antiquarian Society 

 will be regarded as the best evidence of their estimate of the importan'^e of 

 the proposed work, and of their confidence in the manner of its execution 

 under the patronage and supervision of the Smithsonian Institution. 

 Very respectfully and truly yours, 



SAML. F. HAVEN. 



Prof Jos. Henry. 



APPENDIX B. 



To the Regents of the Smithsonian Institution : 



Gentlemen: The apparatus for the purpose of scientific illustration and 

 investigation which I had been for many years accumulating while occu- 

 pying the chair of chemistry in the University of Pennsylvania, on my 

 retiring from that office was replaced by another apparatus belonging to my 



