52 
THE CALIFORNIAN SALMON. 
off entirely when its temperature is too high, hut for so 
far, the difference has not been great between the water 
from it and that of the spring. The temperature of the 
spring is 55 deg., and the pipe supply has risen on hot 
days to 62 deg., but the young fish did not seem to suffer 
in the slightest, and those in the warmest Avater are the 
furthest advanced. The hatching went on favorably, but a 
large number of the eggs arrived at a certain stage and 
failed to produce live fish. Sometimes after a struggle the 
head would appear, and the little creature would perish in 
the effort to emerge from the shell. In others, after the 
eyes were plainly visible, the living principle became 
extinguished, as shown by the ovum becoming white or 
opaque. The fish which were hatched, however, were 
strong and healthy. Tor a time the dead eggs picked out 
were over three thousand a day, and prospects were rather 
gloomy, but circumstances proved that it was more from 
the conditions to which the ova had been subjected before 
their arrival that the losses were attributable, than to their 
treatment after landing. 
The total shipment was supposed to be 50,000 ova, but 
from a rough count the number received was estimated at 
55,000. When the eggs were opened, one layer of about 
7,000 ova was put in each box. The combined stream 
runs through the boxes from 1 to 8, the first boxes getting 
the fresh, cool water, and having the best chance, the 
water heating 2 deg. in passing through the boxes in hot 
weather. When the hatching was nearly finished, a very 
marked difference was observable in the number hatched 
in each box. No. 1 had only about 1,000 live fish out of 
7,000 eggs. These eggs were on the top, nearest the ice. 
The next layer, in No. 2, had probably 3,000 fish out of 
7,000 ova. No. 3 was the best of all, and there were prob- 
ably 6,000 live fish out of 7,000 ova. Nos. 4, 5, and 6 were 
