PROCEEDINGS OF 
[June, 
lar, the objects of which are known to us by its correspondence with the mineralo- 
gical establishment of our city. 
IX. We desire to receive from it zoological productions of every sort, principally 
of that class which it may be pleased to receive from us. 
X. We possess zoological specimens of our country and of foreign regions, de¬ 
signed for exchange, numerous insects, shells, &c. But we can also furnish, on a 
little notice, European animals of all classes. 
XI. In forwarding to us, we recommend the way of New-York, (Mr. Ph. Lajeune,) 
or directly by Havre, in France, (Messrs. Wanner, Langert, & Co.) 
The Director of the Zoological Museum of the University of Heidelberg. 
Dr. H. G. BRONN, Professor in the University. 
P. S. If acceptable to you, I offer an exchange of the petrifactions of your 
country for those of Germany and the neighboring countries. This exchange, 
however, only concerns me personally, and not in my capacity as director of the 
academical collections. 
H. G. BRONN. 
From Major W. H. Chase, U. S. Engineer Corps.— (Extract.) 
Pensacola, April 15, 1841. 
Sir : Through the kindness of Colonel Totten, United States Engineers, I have 
received a bulletin of the proceedings of your society. 
Save some autographic letters of the men of the Revolution, I have nothing at 
my disposal to place among your archives. 
I enclose these letters, (marked one to fifteen,) to be presented to your society. 
I have selected them from some family papers obtained from my grand aunt, Mrs. 
Hancock. Persons possessing similar relics could not do better than to make your 
society a place of deposit for them, as occasionally thereby interesting facts and 
explanations of Revolutionary doings might be obtained and preserved. Letters 
like these, written leisurely and without form, are a better key to men’s thoughts 
and opinions, than studied orations, or the eulogy of friends and partisans. Words 
noted down and epistles preserved, are the only sure points of history, without 
which, the events of the world would be as fabulous as the Indian’s tradition. 
I have the honor to be, sir, very respectfully, your obedient servant, 
WM. H. CHASE. 
From Peter S. Du Ponceau, President of the American Philoso¬ 
phical Society of Philadelphia: 
Philadelphia, May 6, 1841. 
My Dear Sir : I have received your letter of the 21st ultimo, and also, by Mr. 
Ward, the four copies of your bulletin which you had the goodness to send me, for 
all which I beg you to accept my thanks. I shall be very glad to receive your 
amended constitution when it is printed. 
I am very much pleased with the amendments you have made, as far as 
they are known to me. I am delighted to find that all the members of the Cabinet 
have consented to be placed in the list of your directors, honorary, I presume, as 
their more important business will require all their time ; yet nothing will prevent 
