THE 



SCIENCE OF LOGIC 



AN INQUIRY INTO THE PRINCIPLES OF 

 ACCURATE THOUGHT AND SCIENTIFIC METHOD 



P. COFFEY, PH.D. (LOUVAIN) 



PROFESSOR OF LOGJC AND METAPHYSICS, MAYNOOTH COLLEGE, IRELAND 



IN TWO VOLUMES 



VOL. I. 

 CONCEPTION, JUDGMENT, AND INFERENCE 



NEW YORK 



PETER SMITH 



1938 



