PBEFACE XIU 



discussed, but a bibliography appendix containing these references 

 has been included at the end. 



To those who treat with condescension all science that cannot be 

 quantitated, it might be said, "True, morphology is only a stepping 

 stone, and while as a stepping stone it is not a place to stop, it is 

 none the less basic." And to those whose comprehension is confined 

 to mere morphology, it might be said, "True, morphology is basic, 

 but it is only a stepping stone in science." And to both it should be 

 said, "All fields of science are stepping stones, and in science there 

 are no places to stop." 



The author wishes to express his appreciation to the following for 

 critically reviewing various sections of this volume and offering many 

 helpful suggestions: Dr. R. R. Bensley, Dept. of Anatomy, University of 

 Chicago; Dr. W. L. Doyle, Dept. of Anatomy, University of Chicago; 

 Dr. 0. H. Lowry, Dept. of Pharmacology, Washington University; Dr. 

 G. H. Scott, Dept. of Anatomy, Wayne University; and Dr. J. M. Tobias, 

 Dept. of Physiology, University of Chicago. The encouragement in this 

 undertaking of Dr. M. B. Visscher, Dept. of Physiology, University of 

 Minnesota; and Dr. B. Sullivan, Director of Laboratories, Russell-Miller 

 Milling Co., Minneapohs, is also gratefully acknowledged. The author is 

 grateful for the invaluable assistance of the pubhsher's staff. 



David Glick 

 October, 1948 

 Minneapolis 



