274< SALMONIA. 



that had not a single leech upon their bodies, 

 and they were the first fish of the kind I 

 ever saw free from these parasites. 



Orn. — I am so much pleased with my 

 good fortune in catching this fish, that I shall 

 try all day to-morrow with the bait, for more 

 of the same kind. 



Hal. — You may do so ; but many of these 



fish cannot be caught; they migrate generally 



when the water is foul, and, except in the 



sprhig and autumn, do not so readily run at 



the bait. I was once nearly a month seeking 



for one in rivers in w^hich they are found, 



between the end of June and that of July, 



without being able to succeed in even seeiiig 



one alive; and as far as my information goes, 



the two places where there is most probability 



of taking them, are at Laybach and Ratisbon, 



in the tributary streams to the Sava, and in 



the Danube ; and the best time, in the first of 



these situations, is in March and April, and 



in the second, in May. I am told, likewise, 



that the Izar, which runs by Munich, is a 



stream where they may be caught, when the 



water is clear : but I have never fished in this 



stream — it having been foul, either from rain, 



