PROC. AM. PHILOS. SOC. 



VOL. XLIX. NO. 194 



Plate IX 

 West 



Comet 1907 d (Daniel) on August 8, 1907, at 1$^ 30'^ C.S.T. 



Exposure d^ 33^^. Scale : i inch = 44' 



lo-inch Bruce Portrait Lens. Yerkes Observatory. 



