Xiv INTRODUCTION 
Dakin, of Liverpool University; Mr. Chadwick, of 
Port Erin; the Misses Crisp, of Playford Hall, Suffolk; 
Mr. Crisp; Mr. Cook; and Mr. Hudson, of Ipswich; 
and numerous other friends who, from time to time, 
have supplied me with specimens of living fish; and 
lastly, the Rev. H. A. Watts, for kindly revising the 
manuscript. 
