The philosophy of science / 
edited by P. H. Nidditch. 
 - London:  Oxford University Press,  1968. 
 - 186 p. ;   21 cm. 
<br/><br/> includes index 
<br/><br/>p.178-183 
<br/><br/><label>ISBN: </label>0198750080 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Philosophy