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Helen Loomis, the Zoology teacher of that school, for the benefit of the 
Zoology class. ‘The experiment was an unqualified success, affording the 
pupils and other Chicago teachers of Zoology an opportunity to come in 
intimate touch with the subject of fish culture. The eggs furnished by 
this bureau were hatched in about two weeks, and the fry was deposited 
in Wolf Lake by the teacher and her pupils. There was hatched at this 
little hatchery approximately 100,000 fry. The cost of the work to the 
State was twenty-five cents. The educational value to the pupils would 
be difficult to estimate. The teacher and her pupils expressed them- 
selves as being very grateful to the department for giving them an 
opportunity to come in daily intimate contact with such an interesting 
experiment. 
During the past winter we were able to hatch some brook trout and 
rainbow trout at the Spring Grove hatchery. The brook trout did well, 
but the rainbow trout, a hardier fish, did not thrive, owing no doubt to 
our trout water conditions which have not been altogether satisfactory. 
Last year when we built our trout ponds we were pressed for time, and 
had an insufficient amount of money to complete our work properly. 
Surface water reached our source of supply during rainy weather, and 
had a tendency to foul our ponds. This year we opened a new spring 
which is now furnishing good water, with the result that our brook and 
rainbow trout both large and small are doing remarkably well. 
As the commission well understands, there is comparatively little 
trout water in the State, but what little there is the department is now 
able to care for in a substantial way. 
Our trout ponds at Spring Grove it is hoped will serve a further 
purpose than that of furnishing young fish for the public trout streams 
of the State. ‘They should prove instructive to farmers and other land 
owners of the State who have springs on their property which may be 
used for the establishment of private trout ponds. With a little help 
and encouragement from the commission these waste waters may be put 
to profitable use. The department as I am advised stands ready to ren- 
der such aid as may be peewee to promote an interest in private trout 
culture. The expert service of the fisheries bureau is at the disposal of 
those who may need such service. 
As soon as the summer bass work is out of the way the Spring Grove 
hatchery. will be put in shape for hatching lake trout during the winter. 
Tt is planned to secure from one hundred to one hundred and fifty quarts 
of eges off Waukegan, in Lake Michigan. These eggs will be taken in 
early November, hatched, and the fry “planted on the spawning grounds 
in Lake Michigan. 
The lake trout hatching will be carried on at the same time that rain- 
bow and brook trout will be hatching. An effort will be made to secure a 
good consignment of white fish, to be hatched during the winter. The 
fry will be planted in Lake Michigan. 
As we have no white fish spawning grounds off our shore, we will 
have to rely upon outside assistance for spawn. It is hoped that we will 
be able to get several million eggs from the Federal Bureau of Fisheries. 
The work of rescuing fish from the overflowed lands along our large 
streams is done by the warden service of the department and distributed 
