El Paso herald. (El Paso, Tex.) 1901-1931, 1913-09-21

cars are so placed as to be shaded from
the direct rays Of the sun
Such an apparatus is cheaply and
easily installed. The cost of it is re-
markably low. 1t is capable of IN
limited expansion by the addition of
units-each car being considered as
unit. The Wexford plant, as above
stated. has four units. and each car has
a capacity Of 5000 gallons
The new method is applicable to all
kinds of aquatic animals, fresh water
or marine, from those microscopic size
to specimens a foot or more IN length
There do not seem to be any aquatic
animals whose young at all events
may not be reared in this way to adj
vantage
The fundamental idea is to reproduce
the natural environment as far as pos
sible-tO provide water suitable to diff
ferent species in percentage Of salts;
to make the water well aerated but
not over aerated; to secure proper tenn
peTature. density, and even current If
required; to furnish proper food IN an
available condition: and, finally to get
rid of all bacterial and chemical i'm
p1rities.
Tried First on HOLSTERS.
The plan here described was first
tried for the purpose Of Matching and
rearing Holsters 1t was so successful
that il was applied to fishes and other
aquatic animals. AS for the Holsters,
the practice of stripping them of their
eggs as a preliminary to Matching the
latter has been entirely abandoned.
They are allowed, instead. to hatch
their own eggs Rip ~berried" hen
Holsters are simply placed in the rear
ing cars and allowed to crawl about
until their eggs hatch The young
larvae transferred to other cars. pass
through their ''molts." finally assume
the adult or walking" form-they are
free swimmers at first-and, thus aoIe
to take care of themselves. are set at
CHI Wit
prospect of growing up and finding
their way to market eventually.
Almost nothing IS known about the
young of many important species OF
food fishes It is not even known what
they look like, or what are their habits
Much light is expected to be thrown up
on this subject by the Matching of their
eggs and the rearing of their fry as
well as by catching unidentified fry
and rearing them under observa ton.
It will thus be learned how fast they
grow, among other things
May Solve Transportation Problem.
The knowledge already obtained will
help to solve the problem of transport
ing fishes. Inasmuch as some metals,
especiaIiv copper and galvanized iron,
are noisOn to them, and new wood. par
ticuIarIv pine is injurious, II Is de-
SirabIe to use for the purpose recep-
] tacles of iron, enamelled on the inside;
I The water provided should De dipped
from the water in which the animals
{ have been living; and the tank con-
tanning them should be surrounded
with q jacket into which Ice or warm
! water can be put, to control the tenn
| perature Oxygen and current car, can be
/ furnished by a small propeller kept III
4 motion by a spring motor A..
| In these days when so mUch anXlely
! is felt about the rise in the cost OF
] living it is Of obvious importance thaI
! the food resources of the ocean. as well
! as of other waters. should be conserved
/ to the utmost. and even auguImenItese
/ wherever possible This new back to
/ nature" method promises to point me
way to means whereby many v va lal1i.
| species of fishes. mollusks, anu . cr9
! taceans can be propagated IN pI4ctlcsliIy
unlimited numbers. The old tine no
ton that the sea could not be Ils ,il
/ out seems to have been dlsproVe1- ENeI
tho cod fishery has greatly fallen of
! within recent years. Perhaps the time
! may arrive in the not distant future
I when artificial floating Islands SIM
liar to the one here described. but OF
/ a vastly larger scale. viii be a1choret