LEADER 00000nam  22000001  4500 
001       50009480  
008    790405s1950    nyuac         00000 eng   
050 0  QC6|b.A3 1950 
082    530.1 
100 10 Abro, A. d' 
245 14 The evolution of scientific thought from Newton to 
       Einstein 
250    2d ed., rev. and enl 
260 0  [New York]|bDover Publications|c[1950] 
300    481 p.|bports., diagrs.|c21 cm 
650  0 Relativity (Physics) 
650  0 Science|xMethodology