NO. 4! Id] 



NOTES AM) LITERATURE 



495 



of France and England and the eastern shores of Scotland in 

 January-February. In March the tiny elvers swarm along the 

 shores of the Netherlands. Denmark and Norway and continue 

 to arrive there during the month of May. Danish waters and the 

 western Baltic form the eastern limits which the eel reaches in 

 the elver stage. Their farther migrations into the Baltic and up 

 the rivers of northern Europe are accomplished during the period 

 of rapid growth which now ensues. 



The extensive eel fisheries of Europe thus depend upon the 

 migratory habit of a true Atlantic deep-water fish which seeks 



