Southern District Court acted as a copyright registry. It's New York City.
You're probably talking about millions of books.
Tom

"Daniel H. Weiskotten" wrote:

> Hello all:
>         I recently purchased a cute little pocket dictionary (published in
> Cazenovia, of course!) that was
>
> "Entered according to an Act of Congress, in the year 1836, by S.H. Henry &
> Co., in the Clerk's office of the District Court of the Southern District
> of New York."
>
>
> Was this a NY City or Central/Upstate NY court (F.F. Ripley, NY, made the
> stereotype)
>
>
> I'd like to be able to find similar entries for other titles.
>
>