§.itt^jor's §tVxtuixan, 



TO 



DAVID FEERIEE, M.A., M.D., LL.D., F.R.S., 



MY CHUM FOR THREE YEARS, 

 AND MY FRIEND FOR MORE THAN THIRTY 



I DEDICATE THIS BOOK, 



NOT ONLY AS A MARK OF LONG AND UNBROKEN FRIENDSHIP, 



BUT ALSO IN RECOGNITION 



OF THE MARVELLOUS ABILITY 



WHICH HAS ENABLED HIM TO DO FOR THE BRAIN 



AYHAT HARVEY DID FOR THE CIRCULATION 



AND BRING ORDER OUT OF CHAOS. 



