[7] A FOREIGN REVIEW OF AMERICAN FISH CULTURE. 483 
from the owners of the weirs or permanent fisheries, and are taken to 
the inclosure in boats furnished with fish boxes. The depth of water 
in this “ park” varies from 70 centimeters to 5 meters. An abundance 
of aquatic plants and shrubs on the banks, whose branches overhang 
the stream, furnish ample shelter and protection from the rays of the 
sun, for even in places where the water is deepest the temperature at 
the surface during the hot summer days only reaches 75 to 80 degrees 
Fahrenheit. 
Throughout the whole extent of the inclosure the bottom is covered 
with a thick layer of mud, so as to prevent the salmon from spawning, 
which many of them would undoubtedly do if they found a sandy bottom. 
_ The upper barrier is located in a place where the stream is shallow 
and only 4 meters broad. A small shed, close by, holds the necessary 
material for gathering the eggs and transporting them to the incubat- 
ing establishment, which is located at a distance of about 5 kilometers, 
When, in October, the days begin to grow cold, the instinct of repro- 
duction makes itself felt in the salmon, which begin to seek favorable 
places for depositing theireggs. They leave the deep places where they 
have spent all summer and go up the stream until they reach the upper 
barrier, near the shed or pavilion above referred to. Twenty meters 
below this barrier a solid net stretched across the stream only leaves in 
the middle a narrow passage, on the principle of the fish-pot, permit- 
ting the salmon to enter without difficulty, but preventing their getting 
out again. They are thus kept prisoners within a very small space 
where they can be caught without the least trouble. 
They are thereupon distributed, according to sex, in floating boxes, 
from which they are gradually taken by the operators whenever they 
are needed for artificial fecundation. These fish generally number five 
to six hundredyand are capable of furnishing five to nine million eggs. 
The fecundated eggs are immediately placed on wire frames and car- 
ried to the hatching establishment, where, without delay, they are im- 
mersed in the incubating troughs. At the end of sixty days they are 
embryonated and may be sent to any distance.!® 
16 Eggs have thus been sent as far as Australia, where, at the present day, there 
are several water-courses which have salmon that originated in the Penobscot River. 
When all the eggs have been gathered, the total number is ascertained, which isan 
easy matter, as every incubating frame having a single layer of eggs contains about 
2,000; so you have only to count the frames. According to the total expenditure of 
the establishment during the current year the retail price per 10,000 eggs is fixed, and 
this price serves to determine the quantity of eggs to be given to each subscriber in 
proportion to the amount of his subscription. In 1881 the subscription and the pro- 
portionate quantities of eggs were as follows: 
Proportionate 
Sabscription.| quantities of 
eggs. 
ederale GOvernmentecere aca tat canon soceeted us cic calswcioeaee coe cose $1, 757 950, 000 
Sép toloue Mane ks Meee kets se foie sb oo tose b LSARES becled sic eibemalere 2, 000 1, 080, 000 
Stator te VlLASsaGhiuse bls senescence cele nce basen crac ceeeececes ceeds 590 270, 000 
eater faConnechiCuGercse tse aa scts oa ek ate cines cas cee cota n tb bceceb er 300 162, 000 
