"'But let us show you how we make oysters! See, these are the tanks which contain the mixture—the compound which forms the body of the bivalve. This tank contains the beard-mixture; and this one the gristle.'
"'And what are the principal ingredients?'
"'Glue, made from horses' heels. This is a very important factor in our products. This glue, after undergoing a peculiar treatment which prevents its hardening and losing its elasticity in the course of years, is flavoured and coloured in various ways. This great tank contains the composition for the internal parts of the oyster—nearly black, you perceive; that tank over there contains the compound for the flesh that covers the internal parts; that tank farther along holds the beard mixture; and the one beyond that the gristle which attaches the oyster to the shell. First, the flesh of the oyster is run into moulds, each oyster being in two parts; then the inside of the animal is run into another mould, and the two halves of the body are automatically placed around it and cemented together.
"'Meanwhile the beards have been rolled, stamped, frilled, and coloured along the edge by special automatic machinery. The body of the oyster then passes to the fixing-up room, where the beard is cemented to it by hand, and finishing touches of colour added; and then it passes along and has the gristle attached: and the oyster itself is complete.'
The Oyster Factory Affixing the Beards.
"'But it wants a shell!'
"'Just so. As far as the supply will go, we buy up old shells from dustyards and use them; but most of them are damaged by previous opening, so we make the bulk of our shells, and they're a good deal more natural than the real ones. They're made of lime.'
"'All alike?'
"'Not in the least. You see, we have some thousands of moulds, every one differing slightly from the rest. There's a special department for hingeing the two shells together. We had some trouble to find a substance for the hinge; but at last one of our chemists hit on a way of subjecting old hide-scraps to a peculiar process, and that did the thing. The mother-of-pearl is made of a sort of soft glass, somewhat after the appearance of Venetian glass, and put on the shell hot. Lastly, the oyster is attached to the shells by its cartilage; a little liquor is put in, and the shells are closed up.'