ARTIFICIAL PROPAGATION OF THE RAINBOW TROUT. 
251 
30,000 eggs are to be sliipped, I would divide the shipment in two lots and send two 
boxes. A package of more tlian 10 trays, especially if the trays are large, woubl be 
liable to crush the eggs on the lower trays by having too much weight above. If less 
than 5 trays are used in a shipmeut, the package is apt to dry out, and the eggs will 
reach their destination either dead or in a shriveled condition. The frames of the 
trays (B, plate 92) are made of light, soft lumber, dressed to | by J of an inch, and 
are bottomed with soft canton llannel stretched on tight and well tacked. The trays 
are made lai’ge enough not only to contain their proportional part of the number of 
eggs to be ship])ed in one layer deep, but allowance is made for a space of J of an 
inch between the eggs and the frame of the fray. 
A foundation board (C, plate 92) is made with outside dimensions same as the egg- 
tray, and with a strip nailed around the edge on the top side to form a cushion of moss 
Fig. 4 . Cross seotiou through box after it has been jiacked ami closed. 
for the bottom tray. The hopper (A, plate 92) is used on the to]i tray. The outside case 
(E, plate 92) is made 7 to 8 inches larger on the sides (inside measure), and 5 inches 
deeper than the outside dimensions of all the crates after they are cleated together, 
iuclndiug hopper and foundation board, as shotvn at D (plate 92). The trays having 
been thus prepared, the eggs are selected for shipment (those showing eye-spots and 
not too old to reach their destination before time for hatching out, making allowance for 
changes in temperature which they are liable to undergo on the road, causing them to 
hatch sooner than if left on the hatching-trays). They are taken up from the hatching- 
trays in pans, and after cleaning them well of all sediment, etc., and giving them a 
slight concussion, which can be best done by allowing water to fall on them from a 
