CENTENNIAL EXPOSITION AT CINCINNATI. 
881 
our trips and entered heartily into the work of collecting. Some spec- 
imens were also presented to the Cuvier Club of Cincinnati. 
Several gentlemen who owned or controlled ponds near the city very 
generously gave us the opportunity to seine them, and it was specially 
gratifying that these friendly offers were made voluntarily and gen- 
erally as a result of having seen our exhibit of live fish. In some cases 
the proprietors of ponds sent us specimens of li ving fish. For instance, 
on September 15 we received three fine, large specimens of buffalo fish 
from Mr. J. D. Rosse, proprietor of Rosse Lake, near Elmwood. 
The best locality for obtaining collections was found to be on Little 
Miami River, near Remington, some 20 miles or so from Cincinnati. In 
this work not only was the privilege of seining in the waters near Cin- 
cinnati cheerfully accorded to the Fish Commission, but efficient aid 
was rendered by Mr. W. J. Huddleston, game warden of Hamilton 
County, through whose efforts and cooperation a creditable exhibit of 
live fish was maintained. 
Trip to Lake Erie . — My proximity to the Great Lakes afforded a good 
opportunity for personally observing the methods of fishing and of 
handling fishery products in that region, so far as this could be done in 
a brief visit. For this purpose the Commissioner instructed me to go 
to the lakes, and I left Cincinnati on the evening of October 4 for San- 
dusky, Put-in Bay, and the Bass Islands. Many interesting observa- 
tions were made at these places and considerable information was 
obtained which will be of value in connection with future investigations* 
in this region. Having accomplished all that was deemed desirable, 
I returned to Cincinnati October 9. 
Hatching salmon . — The continuance of the exposition into late autumn 
afforded a good opportunity to give a practical illustration of artificial 
propagation of fish. Therefore, in compliance with instructions from 
the Commissioner, 45,000 eggs of the California salmon ( Oncorhynchus 
cliouicha) were shipped September 17 and 19, from the station at 
Baird, Cal. These eggs were received about a week later in good 
order, and were transferred to the McDonald hatching jars in the fish- 
cultural section. So far as I am aware, this was the first attempt to 
hatch salmon in the McDonald jars, and the success attained, even with 
the muddy water, made the experiment a very valuable one. At first 
the result of this experiment was somewhat doubtful because of the 
muddy condition of the water, but on October 2 the young fry began to 
appear and on the 13th all had been successfully hatched. Eighty nine 
per cent of the eggs hatched, which was a better result than is usually 
obtained under the best conditions. 
This successful attempt to hatch California salmon was one of the most 
attractive exhibits, being a fine illustration of the work of fish-culture 
ahd a never-failing source of interest after the young fry appeared. 
Crowds gathered around the tables to watch the movements of the fry 
or the embryos breaking from the eggs, and so absorbingly interested 
H. Mis. 274 56 
