PROBLEMS OF MODERN SCIENCE 



coinciding with the original plane of ejection. 

 Disturbances due to the attractions of other bodies 

 would cause them to deviate in the course of time 

 from the fundamental, plane, but the system would 

 maintain a considerable degree of flatness, such 

 as is actually the case in our own galactic universe. 



These and many other problems which I have 

 not touched upon must be thoroughly investigated 

 before an ordered picture of the course of cosmic 

 evolution can be formed. They may appear to 

 have but little bearing upon human life and 

 activity, but it must be remembered that the value 

 of a science is not to be measured by its immediate 

 practical utility or economic significance. Never- 

 theless, as civilisation is largely a product of the 

 exact sciences, so Astronomy, being in a very real 

 sense their parent, may claim no small share in 

 directing the thought and progress of the race. 



J. B. DALE 



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