POSTAL CARD – ONE CENT.
United States of America.
THIS SIDE IS FOR THE ADDRESS ONLY.
Astronomical and Physical Society
University of Michigan.
The Regents have received Transactions of the Astro. and Physical Society of Toronto for 1897,
a gift tot he Observatory for which they return a grateful acknowledgment.
A. Hall Jr. Director.
Ann Arbor, 1898, Apr. 20.