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During the year there has been a large number of petitions filed 
with the commission, asking that certain named waters be set apart as 
preserves. All of these petitions have received due consideration, and 
whenever it has appeared wise to do so, the commission has granted the 
petitioner’s prayer. 
At present, the following named waters have been set apart by the 
commission as fish preserves: 
The Rock River, its system of lakes, rivers, streams, creeks, sloughs 
and bayous; Quincy Bay and its bayous; the Kankakee River and its 
system of lakes and streams; the Desplaines River and its system of 
lakes, tributaries and streams; the Mazon River and its tributaries, 
together with Calumet Lake; Spring Lake, Rogue Lake, Tomlinson Run 
and Sand Slough. 
In accordance with the law, the commission. caused to be published 
a notice that the aforesaid waters had been set apart as fish preserves. 
Also, these waters were duly posted warning all persons that fishing only 
with hook and ne would be permitted. | 
PIKE-PERCH (WALL-EYED PIKE). 
In view of the fact that we have such splendid pike-perch waters 
in the northern part of the State, the commission has deemed it wise to 
promote rather extensively the propagation of this fish. 
Pike Perch (Wall-Eyed Pike). 
The pike-perch likes deep, cold-water lakes with a good bottom. 
He is game and by many is regarded as the best fish taken from our 
lakes. While this fish produces a great quantity of spawn, a compara- 
tively small percentage of its eggs are hatched in a state of nature. 
This is so because of its spawning habits, which permit of the destruc- 
tion of its eggs by other fish, and by a variety of disturbances of the 
- water where the spawn is deposited. | 
Under the artificial system of hatching, very few good eggs fail to 
hatch. A 4-pound pike-perch will produce more than 150,000 eggs. A 
