[ACCEPTED FOR PUBLICATION, JANUARY, 1864.]
COMMISSION
TO WHICH THIS PAPER HAS BEEN REFERRED.
Prof. Wolcott Gibbs.
Com. J. M. Gilliss, U. S. N.
Joseph Henry,
Secretary S. I.
COLLINS, PRINTER,
PHILADELPHIA.
CONTENTS.
HISTORICAL SKETCH OF THE TELESCOPE. MEMOIR DIVIDED INTO SIX SECTIONS:—