PROC. AM. PHILOS. SOC. 



VOL. XLIX. NO. 194 



Comet 1907 d (Daniel) on July 11, 1907, at 13^ 58™ C.S.T. 



Exposure 2^ 12"^. Scale : i inch = 46' 



lO-inch Bruce Portrait Lens. Yerkcs Observatory. 



