PROC. AM. PHILOS. SOC. 



VOL. XLIX. NO. 194 



Plate VI 

 West 



Comet 1907 d (Daniel) on August 3, 1907. at 14'^ 5.V" C.S.T. 



Exposure i'^ 40"'. Scale : i inch = 49' 



lO-inch Bruce Portrait Lens. Yertces Ohserz'atorx. 



