69. When have these epidemics taken place, aud to what causes 

 have they been assigned ? 



M. Parasites. 



70. Are crabs : worms : lampreys, or other living animals, found 

 attached to the outside, or on the gills of these fish ? 



N. Capture. 



71. How is this fish caught; if with a hook, what are the different 

 kinds of bait used, and which are preferred ? 



72. If in nets, in what kind ? 



73. At what season and for what period is it taken in nets, and 

 when with the line ? 



74. What would be the average daily catch, of one person, with 

 the hook, and what the total for the season ? 



75. Answer the same question for one seine, or pound, of speci- 

 fied length. 



76. Is the time of catching with nets, or pounds, different from 

 that with lines ? 



77. Is it caught more on one time of tide than on another ? 



0. Economical Yalue and Application. 



78. What disposition is made of the fish caught, whether used 

 on the spot; or sent elsewhere, and if so, where? 



79. What is its excellence as food, fresh or salted? 



80. How long does it retain its excellence as a fresh fish? 



81. To what extent is it eaten ? 



82. Is it salted down, and to what extent ? 



83. Is it used, and to what extent, as manure, for oil, or for 

 other purposes, and what ? 



