ON STELLAR DISTRIBUTION AND MOVEMENTS. 



253 



of the stars; we can without difficulty construct tables or diagrams to 

 show how they are distributed. We have to deduce from these the 

 distribution of the linear velocities, without assuming that the law is 

 ellipsoidal, two-drift, or of any other special form. After listening to 



B 



Diagram Bhowing the Theoretical Curves of equal frequency of Stellar Velocities. 

 A. Ellipsoidal Theory. B and c. Two-drift Theory. 



Professor Turner's presidential address to this Section, I feel sure that 

 this is precisely the mode of investigating such a problem which he 

 especially advocated. 



Let us construct in imagination a diagram of velocities. Considering 



