SEVENTH DAY.] GRA YLING. 177 



and are usually covered with sand or gravel. I once 

 caught a grayling in the "Wo chain Save, that weighed 

 about a pound and a half, the stomach of which 

 equalled in size a very large walnut, and contained 

 some small shells, and two or three white round 

 pebbles as large as small beans. In accordance with 

 their general habits of feeding, grasshoppers are 

 amongst their usual food in the end of summer and 

 autumn ; and at all seasons, maggots, upon fine tackle 

 and a small hook, offer a secure mode of taking them, 

 the pool having been previously baited for the 

 purpose of angling, by throwing in a handful or two 

 a few minutes before. 



POIET. You just now said, that you thought the 

 Lapland fish, considered by Linnaeus as grayling, 

 was the same as Back's grayling ; but I find, in the 

 Appendix to Captain Franklin's narration, two gray- 

 lings described as belonging to the northern regions, 

 one the Coregonus Signifer, and another, which 

 appears to differ very little from it, except being small 

 in size. This seems to agree as nearly as possible 

 with our grayling, with a difference of at most one 

 spine in the back fin. May not this in fact be the 

 same fish as the grayling of the Alps, only rendered 

 in a succession of generations fit for a colder climate ? 



HAL. This is certainly possible ; there is no doubt 

 that, in many successive generations, animals may 



