1.8.C. 46 Proes. of the Asiatic Soc. of Bengal. [N.S., XVIII, 
early B-type (Orion) stars on account of their small peculiar 
motions appear to belong exclusively to this drift. 
Prof. Turner has made an interesting suggestion which 
seems to offer a reasonable explanation of these phenomena. 
of 22-73 Km. per second. The Sun’s velocity forms one of the 
fundamental constants in stellar investigations, as the motion 
of the Solar system provides a much longer base line than 
any other available to the terrestrial observer. 
Moving Clusters. 
