Staple Dietary Ingredients Secured | My Web Site Page 275 Chapter 02 Page 05

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A scorifier is essentially a roasting dish sufficiently thick to resist, for a time, the corrosive action of the fused metallic oxides it is to contain. The essential property of a cupel is, that it is sufficiently porous to allow the fused oxide to drain into it as fast as it is formed. It should be large enough to absorb the whole of the liquid; and of course must be made of a material upon which the liquid has no corrosive action. Cupels do not bear transport well; hence the assayer generally has to make them, or to supervise their making. A quantity of bone ash is carefully mixed with water so that no lumps are formed, and the mixture is then worked up by rubbing between the hands. The bone ash is sufficiently wet when its cohesion is such that it can be pressed into a lump, and yet be easily crumbled into powder. Cupel moulds should be purchased. They are generally made of turned iron or brass. They consist of three parts (1) a hollow cylinder; (2) a disc of metal; and (3) a piston for compressing the bone ash and shaping the top of the cupel. The disc forms a false bottom for the cylinder. This is put in its place, and the cylinder filled (or nearly so) with the moistened bone ash. The bone ash is then pressed into shape with the piston, and the cupel finished with the help of three or four smart blows from a mallet. Before removing the piston, turn it half-way round upon its axis so as to loosen and smooth the face of the cupel. The cupel is got out by pressing up the disc of metal forming the false bottom; the removal is more easily effected if the mould is somewhat conical, instead of cylindrical, in form. The cupels are put in a warm place to dry for two or three days. A conveniently sized cupel is 1-1/4 inches in diameter and about 3/4 inch high. The cavity of the cupel is about 1/4 inch deep, and something of the shape shown in fig. 5.

I heard at that place an extraordinary account of how a dirigible balloon, with nobody on board, had some few years before passed over the house. The balloon--which my informant, in his ignorant language, called a "huge square globe"--flew, according to him, a flag, the stars and stripes, and had an anchor dangling down. The balloon was travelling in a westerly direction. It flew a little higher than the trees, and caused a great scare among the natives. My informant told me that there was no one in the car at all, but they waved their hands at him (_sic_) when they passed over his house! He then told me that the air-ship had passed in the daytime and had quickly disappeared, but that it was beautifully lighted with coloured lights at night. So that it would be difficult from that truthful account to place much reliance on what the man said or on what he had seen at all. It is quite possible--after discarding all the indisputable embroidery from the story--that a balloon actually went over that place, and it may probably have been Wellman's abandoned balloon with which he had tried to go across the Atlantic.

No more was said; Dorothea was too much jarred to recover her temper and behave so as to show that she admitted any error in herself. She was disposed rather to accuse the intolerable narrowness and the purblind conscience of the society around her: and Celia was no longer the eternal cherub, but a thorn in her spirit, a pink-and-white nullifidian, worse than any discouraging presence in the "Pilgrim's Progress." The _fad_ of drawing plans! What was life worth--what great faith was possible when the whole effect of one's actions could be withered up into such parched rubbish as that? When she got out of the carriage, her cheeks were pale and her eyelids red. She was an image of sorrow, and her uncle who met her in the hall would have been alarmed, if Celia had not been close to her looking so pretty and composed, that he at once concluded Dorothea's tears to have their origin in her excessive religiousness. He had returned, during their absence, from a journey to the county town, about a petition for the pardon of some criminal.

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