American Fisheries Socvety. 199 
and egg trays in the center, with a lid on top. The bottom of the 
outer and inner box is common to both. 'Tongued and grooved 
lumber should be used in the construction of the case. 
The height of the case is based upon the number of trays re- 
quired to carry the proposed shipment, though one or two empty 
trays are not objectionable. The case should be 3 feet, 6 inches 
long, 2 feet wide, and not to exceed 30 inches high, outside meas- 
ure. Four hasps are used, two on each side of the lid, so that it 
can be opened from either side. Rope handles are placed on each 
end of each case, with a cleat of three-fourths inch material 
placed close above the holes for each rope handle. 
Between the inner and outer box there is a two-inch space on 
all sides which is to be filled with a non-conducting substance 
such as shavings, moss or other suitable material, and covered 
as shown on blue-print. A similar space and non-conductor hay- 
ing a metal covering and fitting neatly over the ice hopper and 
space for ice should be attached to the lid of the outer box. It is 
important that the inner box be made water tight in order to 
keep the filling dry. 
Between the inner box and the egg trays there should be < 
two and-three-fourths inch space for ice, separated from the trays 
by perforated zinc, and between the perforated zinc and the trays 
a space of about three-fourths inch. The one-half by one inch 
and one-half by one and one-half inch vertical supports for the 
perforated zine are to be placed between the perforated zinc and 
the trays. These supports are held in position by short strips of 
the same material fastened on top. 
The ice hopper is made of thin material and covered on the 
bottom with perforated zinc. Cleats or small rope handles 
should be attached to the ice hopper which is made removable but 
so fitted as to secure it against sliding. ° 
The tray frames are made of one-half by one and one-fourth 
inch lumber, and it is important that they fit easily in the center 
of the case. The bottom is to be covered with wire cloth of No. 
25 or 27 wre, about twelve meshes to the inch, which is stretched 
tightly so that it will not sag, causing the drip water to settle 
in the middle of the trays to the detriment of the eggs near the 
edges. It is desirable to have a covering of strong cloth over the 
edges of the wire bottoms of each tray to prevent their sticking 
