196 SPORT IN NORWAY. 
hatching apparatus generally in vogue in that country, 
as communicated to me by Professor Rasch. 
The case in which the hatching-boxes are placed 
(and which is under shelter, so that the water does not 
freeze) is twelve feet long, thirty-four inches wide inside, 
and five inches deep. The bottom must be perfectly 
water-tight, and very evenly planed. The sides are 
formed of single smooth-planed boards, which fit tightly 
against the bottom, to prevent any leakage ensuing. 
The uppermost end of the case, and into which the 
water runs from the pipe, is of the same height as 
the sides. The whole is divided into five compart- 
ments, the first of which receives the water from the 
pipe. This compartment is eighteen inches wide, while 
the other four are each thirty inches wide. The 
partition boards are one inch lower than the sides of 
the case, and have holes bored in them at a distance 
of two inches from the bottom, by means of hot wire. 
They are bored in two rows (vide fig. 1.), four below, 
and three above. The water can thus run eyenly 
throughout the length of the case. 
The hatching-boxes (fig. 2), four of which are placed 
in each compartment, are constructed as follows :— 
The sides consist of smooth-planed board, two feet 
long, three inches high, and an inch and a half thick. 
The bottom is a glass plate, two feet long, and seven 
inches wide. ‘The ends are of perforated zinc, or brass 
