6 
our prairie streams. Forty-five species were recognized in 
the basin of the Wabash River, and forty-six in that of the 
Kaskaskia. Large quantities of material were preserved in 
formalin for subsequent critical study of species and local 
varieties. At present a similar party is making equally care- 
ful collections from the streams of extreme southern and south- 
western Illinois. 
A considerable number of collections have also been made 
by high school principals and science teachers and sent to the 
Laboratory in aid of this survey. Sets of collecting appara- 
tus and materials for the preservation of fishes were put up at 
the Laboratory and offered for use to those whom we thought 
likely to be interested and helpful in this work with the in- 
ducement of a named set of the specimens collected, to be 
returned to the collectors. This proposition was warmly re- 
ceived, and the plan of co-operation has worked to our mutual 
advantage. 
We have thus become indebted for collections of fishes 
to Supt. C. S. Aldrich, of Canton, to Mr. A. S. Anderson, of 
Dallas City, Hancock county, to Supt. G. C. Baker, of Hamil- 
ton, and to Mr. W. W. Hardin, of Alexis, for collections in 
Warren and Mercer counties; to Messrs. J. P. Stewart, W. C. 
Ivins, and C. E. Fort for collections in Henderson county; to 
Mr. Chancey Juday, now of Madison, Wis., for collections made 
in White county; to Prof. S. S. Maxwell, of Monmouth Col- 
lege, for a Warren county collection; to J.J. Myers and R. W. 
Mills, of the University of Illinois, for collections in Henry 
county and Macon county respectively; to Mr. G. M. Oakman, 
of La Harpe, for a Hancock county collection; and to W. J. 
Wible, of Golden, for a collection made in Adams county. 
We are also under obligations to Prof. W. K. Hill, of Carthage, 
who spent one month in June and July in examining the 
streams of Hancock county and making collections from them; 
to Dr. W.S. Strode, of Lewiston, who sent us the results of a 
large number of collections from the neighborhood of his town; 
to Mr. KE. M. Wright, of Eureka College, who collected fishes 
for us in Woodford county, besides giving us much gratuitous 
service during the summer and fall of 1900; to Mr. R. W. 
