154 
it is not difficult to convince any caviller by proofs and 
demonstration that cannot be gainsaid; but to reason from 
analogy it would seem that if the relatively smaller out- 
put of brook trout has produced such remarkable-results 
as they are known and acknowledged to have, the millions 
of whitefish and wall-eyed pike that have been planted in 
the Great Lakes must have made a marked impression on 
the commercial fisheries, and yet frankness compels the ad- 
mission that thus far the increased catch of adult white- 
fish is not at all commensurate with what it seems ought 
to have been expected as the outcome of these great plants. 
It is true there are many things to be taken into account 
in this matter, not the least of which is the slaughter of 
immature fish; but it would be very gratifying if the ac- 
tual outcome of these plants could be proved as it can 
with the plants in the streams. 
A SUGGESTION: 
THE ‘SPECIALIST IN 'FISHCULTOURE: 
BY W. DAVID TOMLIN. 
In all lines of business, the specialist has become a factor. 
In engineering circles the specialist is called in to examine 
the plant before it is started, even though a consulting 
engineer has supervised the construction all through. 
In electric engineering, after the contract is completed, 
a specialist carefully examines the entire system; not 
alone to test the efficiency, but to look for the most 
economic methods of operating the system. 
Specialists are not confined entirely to the medical pro- 
fession. The demands of American business life call for 
the most improved systems that can be devised to furnish 
