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Fräulein Aennchen was much surprised when she found that Herr Dapsul had hammered out and made several most lovely kitchen-pots and stew-pans of copper. As an expert in such matters, she observed that the tinning of them was done in a most superior style, so that her papa must have paid careful heed to the duties legally enjoined on coppersmiths.
Undoubtedly even before the Roman conquest, Gaul worked gold mines; it seems, however, that silver mines remained untouched until about the time of Augustus. At any rate, the discovery of some deposits of gold and silver then gave a spur to several flourishing industries; jewelry-making, and an original Gallic industry of much importance silver-plating and tinning. It is a Gallic invention.
"It appears," he adds, "to have been tinned; but almost all the coating had been worn off.... The art of tinning copper was understood and practised by the Romans, although it is commonly supposed to be a modern invention." Neckam mentions the roasting-spit, elsewhere called the roasting-iron; but I fail to detect skewers, though they can hardly have been wanting.
And therefore they assume an air of impatient superiority and make objections however sick at heart they may be. And I hope they are; at least, as much as a grocer who has sold a tin of imperfect salmon which destroyed only half a dozen people. And you know, the tinning of salmon was "progress" as much at least as the building of the Titanic. More, in fact. I am not attacking shipowners.
With these trades may be classed, also, the concentration and distillation of acids and liquids boiling at a high temperature, and we may also include baths for tinning small articles, and the tinning by fusion of sheet copper, the same burners being applicable, and perfectly suited to all these requirements, unless the tinning baths are long and narrow, in which case the furnace-bar burners again come to the front as the best; as, if we are to use gas economically, the flame must be the same shape as the vessel to be treated.
He seems to have a rough cloth and sand under his feet, so I suppose this is only his energetic way of scouring the pot preparatory to tinning it, for the Kalai-wallah is the "tin-man," whose beneficent office it is to avert death by verdigris and salts of copper from you and your family.
I found him a poor wizened little creature, pottering about with his acids, and making a living as best as he could, soldering and tinning kettles and pans. "What do you want?" he asked, looking askance at me; and as I went out, I heard him bolt the door behind me. Alas! he was afraid afraid that I was come to snatch his daily bread from him.
It is easy to remedy so terrible an evil. The acetous acid has no action upon tin. By tinning the stills, the purity of the liquor will be augmented, and the distilling vessels, already so expensive, will be longer preserved. This operation must be renewed every year. The worms must likewise be tinned, if they are copper; but they are better of tin, or of the purest pewter.
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