50 Thirty-fourth Annual Meeting. 
taken place, but at the end of fifteen minutes the distended con- 
dition appeared but as in the case of the one to six solution it dis- — 
appeared in a few days with no apparent harm to the fry. The 
eggs were subjected to the solution only once. This solution has 
been used with equally good results on eggs of the dog salmon 
and steelhead trout. 
The salt solution is an aid to fishculture in other ways not 
previously recorded. It enables one to distinguish the dead and 
unfertilized eggs at an early stage of developement. To do this 
the basket should be immersed one minute in a one to twenty 
solution and then returned to the trough. Within an hour all 
empties will have turned white. The danger of rupturing the 
embryo, which is liable to occur by the old method is thus elimi- 
nated. Thus one can clean up very young eggs for shipment 
with very little handling. 
In using this process the solution was held in a water tight 
box or trough of one inch lumber, 40 inches long, 18 inches wide. 
and 12 inches deep. Inside this was a second box of one-half 
inch lumber, 3 inches less in width, 3 inches deeper, and provid- 
ed with handles and a screen bottom. A net or scoop made of 
basket wire was used for removing the dead eggs. The trough 
or box was filled to within a few inches of the top with water and 
salt gradually added and dissolved until the proper density be- 
ing determined by taking a small portion of the solution in the 
graduate and testing it with a few good and bad eggs each time 
the salt was added. This was found to be the most satisfactory 
method, as salt readily absorbs moisture and varies in purity, 
thus making it difficult to get it correct by weight or measure- 
ment. The box with the screen bottom is placed in the solution, 
wedged down, and a full basket of from 35,000 to 60,000 eggs is 
poured into the inside box. In less than one minute the good 
eggs have settled to the bottom and the bad ones can be removed 
with the wire scoop. The inner box can then be hfted out and 
the good eggs returned to the basket and fresh water, the whole 
process not requiring over three minutes. One solution can be 
used over many times by adding sufficient salt to maintain a 
uniform density. 
The box or trough was adopted because of convenience in 
handling, and on account of its furnishing the necessary amount 

