| Description | Secretary's In Letters: letter from Thomas BLAND, Old Slip, New York, 17 Oct 1854. Re: Sends a small parcel of fossils from Quebradillas on the north coast of Puerto Rico, also sends a box of recent shells as he believes the Society has a collection of modern specimens, has been lately engaged in studying the internal structure of Trochatella, Helicina and Proserpina, and includes his publication on the subject. |