54 FISH-CULTURAL ASSOCIATION. 
importance. I am inclined to attribute the disappearance of 
land-locked salmon in recent times from some of their old haunts 
in different parts of the Schoodic lakes, to the attacks of pickerel 
which were introduced from the Penobscot waters. I think it is 
capable of demonstration that in each instance where this has 
occurred the existing conditions were more favorable to the 
growth of pickerel than of land-locked salmon. A case in point 
is that of Junior stream mentioned above. The lower course of 
this stream is a broad, weedy, semi-stagnant piece of water, full 
of aquatic weeds, a most admirable place for the reproduction and 
growth of pickerel, which could here le in wait for the young 
parr, and down whose capacious throats the entire brood may 
have slipped. The presence of pickerel is not, however, necessa- 
rily fatal. If the conditionsare sufficiently favorable the salmon 
will maintain themselves, as at Grand lake stream. In general 
any lake in which trout maintain themselves against pickerel 
may be considered suitable for land-locked salmon. It is quite 
possible that in some cases the salmon will succeed where trout 
have yielded to their foes, but there is nothing in experience to 
warrant the expectation. 
The growth attained in some of the instances cited above, lead 
to the hope that introduced to conditions more favorable than 
those of their native haunts, they will become permanently in- 
creased in size and in importance. It is not too much to hope 
that in suitable tributaries of some of the great lakes, especially 
those of Lakes Superior, Michigan and Huron, they may even 
become what they have never yet been in their original homes 
in Maine, the objects of pursuit of an industrial fishery. 
Prof. Goopre: Mr. President, I am sure we have all lstened 
with great interest to the paper read by Mr. Atkins. It certain- 
ly is a magazine of new facts concerning the land-locked salmon. 
I should like to take advantage of the presence of Mr. Atkins to 
ask one or two questions. The land-locked salmon is, I sup- 
pose, universally admitted to be a descendent, through modifica- 
tion in habit, of the sea-running salmon. (To Mr. Atkins) Have 
you in your studies of this fish been enabled to judge how long 
