PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1921. 41 
convenience and efficiency of the operations and also effect an 
economy. The new building, of fireproof construction, provides for 
a machine shop, boiler and pump room, garage, and ample storage 
space. The old boiler and pump room, of frame construction, con- 
stituting a further fire menace, has been removed. ‘The new boiler 
space is adjacent to and connected with the coal shed by a covered 
passage, thus eliminating a long and expensive haul of coal from the 
storage to the boiler. 
Another important change was the construction of a sand filter, 
with a capacity of 300 gallons of water per minute. The arrange- 
ments are such that the water from the cod-spawning cistern enters 
the filter by gravity. From the filter it is returned to the storage 
tanks by the pumps. ‘ Make-up” water will be added each day in 
sufficient quantities to keep the supply in good condition. This will 
add to the efficiency of the fish-cultural work by eliminating from the 
hatchery the sediment that is carried in the water taken direct from 
the harbor and which has been particularly detrimental, to the eggs 
under incubation during periods when the harbor water is agitated 
by high winds. The arrangement will be further effective in a sav- 
ing of fuel, since it is found expedient to raise the temperature of the 
hatchery water supply from 8 to 10 degrees during thes winter 
months. The new system will permit of the water that has been 
warmed being kept in circulation throughout the entire system. 
Modern heating apparatus, with automatic thermo controls and an 
electrically operated pump, for use during the summer when but 
comparatively small quantities of water are used, will effect a fur- 
ther saving in fuel consumption. 
PROPAGATION OF BUFFALOFISH, ATCHAFALAYA (LA.) SUBSTATION. 
[C. F. CuLLEer, in Charge.] 
The propagation of buffalofish in the Atchafalaya River district of 
Louisiana is meeting with success, dependent to a large extent on the 
regulations recently established by the Louisiana Conservation Com- 
mission. Under existing arrangements no fisherman is allowed to 
operate nets during the spawning season without first securing from 
the State authorities a permit, which is revocable in the event that the 
eggs of all ripe fish taken are not delivered without charge to collect- 
ing agents of the bureau. It is considered that permission to fish 
during the closed season, with the right to retain the fish captured 
after stripping, is sufficient compensation for the eggs turned over to 
the bureau. 
This work was inaugurated in the spring of 1918 to meet the large 
and increasing market demands for buffalofish, and while the water 
stages in the river during the spawning season are not uniformly 
favorable the experience gained has demonstrated that, with the local 
cooperative assistance at present afforded, there is no reason why 
hatching operations should not be continued on an extensive and 
profitable basis. Thus far the fishermen have willingly complied 
with the terms of the regulations, and the cooperation rendered by 
them has contributed largely to the success of the work. 
In the season of 1921 the substation was opened on January 23 and, 
in order to free the hatchery water supply of the large amount of 
sediment contained in it, a filter was installed in the water-supply 
