THIRTEENTH ANNUAL MEETING. 43 
stinct begins to govern his actions to which the land-locked 
is forever a stranger. 
Of less theoretical but more practical importance is a compar- 
ison of size. The average of adult Penobscot salmon is about 
thirteen pounds, though there are some fluctuations from year 
to year—the mean for a season being sometimes above sixteen 
pounds, and sometimes below twelve pounds. If we excluded 
the Ontario and Champlain salmon, we know of no Jand-locked 
salmon in America that average half aslarge. The Sebago fish 
are the largest; a score of thirteen taken with hook in the Sou- 
go river in 1880 averages five pounds, and this is probably 
about the usual size, though individuals. of great weight are 
sometimes taken. The above score contained one weighing 10% 
lbs. One thirty and a half inches long and weighing 15% lbs. 
was taken with hook in May, 1883. One found stranded and 
dead in Rogers brook in Bridgton in 1883, was thirty inches 
long and weighed twenty-five pounds. The Reed’s pond salmon 
are next to those of Sebago in size,—indeed, possibly, are fully 
equal. The salmon of the Sebec region vary much in the differ- 
ent waters of the system, as do also those of the St. Croix, but 
the average growth may be taken to be about the same as at 
Grand lake stream, where some hundreds were measured in 
the autumn of 1883, with the result that the mean weight of the 
males was 3.2 lbs., and of the females 3 lbs., while the salmon 
taken in May and June are perhaps a quarter of a pound lighter 
AN AUGMENTATION OF MEAN SIZE. 
In connection with this part of my subject I have some very 
interesting statements to present, with reference to a dreaded 
change in the mean size of the Grand lake salmon. 
A Philadelphia sportsman who fished at Grand lake stream 
nearly thirty years ago, furnished Mr. Thaddeus Norris memo- 
randa from which the following averages may be deduced. In 
June, 1856, the average weight of 634 salmon was 1.38 lbs.; in 
June, 1857, the average of 432 salmon was 1.49 lbs.; in the same 
month of 1858, the average of 575 salmon was1.42 lbs. In May, 
1865, Hon. Harvey Jewell with one companion took 379 salmon 
weighing 5024 lbs., and averaging 1.33 lbs., and remarks that 
