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‘
THE SEAS
the sh can beutilized.
Heads, ns, boues and entrails, in
fact all that remains of the sh after they have been
prepared for market is taken to the meal—making factory.
Until recently the great drawback to these factories has
been their odour, but now anodourless process has been
invented so that factories can be built inthe big shing
ports in close proximity to the harbours so that no expense
is incurred in transport of the oal.
Into one end of the
plant is placed the sh remains and from the other comes
the clean dry sh meal, ready to be packed up and sold.
The oal is rst passed through a chamber in which it is
heated and dried by means of steam pipes.
After this
'
prolonged heating the mass becomes thoroughly sterilized.
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The Vapours and smells arising inside the chamber are
carried off and dissolved in special solutions. »'The dried
remains 'are then passed onto another chamber in which
they are crushed and reduced to a ne powder.
The
'
meals thus obtained are of great value as food
cattle
and poultry. ' A German "rm has recently produced an
extract
cods’. heads which is to all appearances
similar to meat extracts, and which pfobably'is just as
n'ourishing and can be produced at a fraction of the cost.
Fish sCrap Can also be dried and used as fertilizers.
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.G1ue is obtained chiey from such sh as the cod,
haddock, and hake, and is a product of the sh’s skin.
The material is thoroughly "Washed to” remove all traces
of salt and then placed in steam extractors;
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ISinglass is et pure gélatious substance obtained from the
swimming—bladder, or “ sounds,” of certain sh. Although
the best material is obtained in Russia from‘ the sturgeon;
very goOd quality isin‘glass‘ can also be manufactured iron
the-halte.
It is used chiey »ior clarifÿing
it is also used in the making Of Certain glass 'and diamond
cements.
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