CH. III.] CHANGE OF WATER MODE OF TRANSPORT. 41 



ever purchased them when he became tenant of 

 the waters, he is unable to speak positively as to 

 their ages. He describes them as being very 

 handsome, and invaluable for breeding purposes, 

 though, for the reason above mentioned, he is 

 unable to rely exclusively on them for his stock. 



Although both lakes, La Hulpe and Boilsfut, 

 are fairly well supplied by springs and natural 

 streams, yet he believes the qualities of the waters 

 flowing through them to be different, the sources 

 from which they are derived being distinct. 



With a view therefore of promoting the growth 

 of his fish a change of water being in his opinion 

 the means which, more than any other, conduce 

 to improve both their size and quality he every 

 other year transports the smaller fish from Boils- 

 fut to La Hulpe, and vice versa. This he eifects 

 by carting them across in barrels, the proportion 

 of water to fish in each being one-third water 

 and two-thirds fish. In order to insure them a 

 due supply of air during the transit, the hole in 

 the side of each barrel is bunged up with a wisp 

 of straw. By the jolting of the cart the fish are 

 kept in continual motion, and, while the water is 

 prevented from escaping, it becomes, by being 

 shaken against the straw, sufficiently charged with 



