8 A HISTORY OF FISHES 



century the publication of the mighty works of Belon (1518- 

 1564), Rondelet (1507-1557), Salviani (1513-1572) and others, 

 gave a fresh impetus to the study of the science, and estabUshed 

 the idea of a species once and for all. From this time onwards 

 the progress of ichthyology was rapid and continuous, and its 

 history includes the names of Linnaeus, Risso, Rafinesque, 

 Bloch, Lacepede, and Cuvier, men whose pioneer work, often 

 carried out in the face of great difficulties, with small material 

 and inadequate apparatus and instruments, has laid the firm 

 foundations of the science upon which modern ichthyologists 

 are still building. 



