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Updated: May 12, 2025
As this process of sharpening tools is a very important one, it must be reserved for another place. Should tools be seriously blunted or broken they must be reground. This can be done by the carver, either on a grindstone or a piece of gritty York stone, care being taken to repeat the original bevel; or they may be sent to a tool shop where they are in the habit of grinding carving tools.
The instruments employed are an eight inch Voigtlander photographic lens, reground by Alvan Clark & Sons, and Dr. Draper's 11 inch photographic lens, for which Mrs. Draper has provided a new mounting and observatory. The 15 inch refractor belonging to the Harvard College Observatory has also been employed in various experiments with a slit spectroscope, and is again being used as described below.
It can easily be made to stand any pressure, and if damaged by grit or dirt it can be reground with ease as often as necessary without deterioration, whereas an ordinary swivel, if damaged by grit, has to be thrown away as useless. For meals, where a steam-kettle is not used, it is the best policy to have a cistern holding about 1½ pints for each man, and to boil this with a gas-burner.
We do this, and soon get our edge; the bright rim has disappeared, but we have done an unwise thing, and have not saved much time, because we have begun to make a rounded edge, which, if carried a little farther, will make the tool useless until it is reground.
The middlings thus purified were then reground, and the result was a much whiter and cleaner flour than it had been possible to obtain under the old process of low close grinding. This flour was called 'patent' or 'fancy, and at once took a high position in the market.
The other prisoners would try to wrest away the food, as they were driven mad by hunger. They were frequently fed with bread made from old, worm-eaten ship biscuits, reground into meal and offensive to the smell. Many of the prisoners died, and some were put into oblong boxes, sometimes two in a box, and buried in Trinity church-yard, and the boy, himself, witnessed some of the interments.
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