(Copy) I acknowledge to have received of Michael M. Bost, Navy Agent of the U.S. 12 Boxes, 2 Trays of arti- cles collected by the Scientific Corps of the Walker Exp. Expedition - Which are to be kept subject to the order of the Secretary of the Navy. (Signed) Franklin Peale Chairman of Committee On the Collections of the Philadelphia Museum. Philadelphia, April 28th. 1849. "Duplicate list remains with the articles." (Copy) Philadelphia March 9th. 1849. To Hon. J. H. Paulding, Sectt. of the U.S. N. Sir, I have the honor to transmit herewith, the receipt of Franklin Peale Esq., Chairman of Committee on the Collections of the Philadelphia Museum, together with lists of Specimens, numbers 1 to 5 inclusive. I am Sir With Great Respect- Yr. Obt. Servt. (Signed) Michael M. Bost. N. A.