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In the second place, watch-glasses are ground on the edge to a single bevel to snap into the bezel or frame; but the edge of this object was ground to a double bevel, like the edge of a spectacle-glass, which fits into a groove in the frame and is held by the side-bar screw. The inevitable inference was that this was a spectacle-glass.
Wollaston, and requested to be shown over his laboratories in which science had been enriched by so many important discoveries, when the doctor took him into a little study, and, pointing to an old tea-tray on the table, containing a few watch-glasses, test papers, a small balance, and a blowpipe, said, "There is all the laboratory that I have!"
Erlenmeyer flasks, cover them with watch-glasses, and bring the acid just to boiling. Remove them from the flame and drop in the portions of wire, taking great care to avoid loss of liquid during solution. Dilute with 150 cc. of water and cool !completely!. When cold, add rapidly about 30 cc. of mercuric chloride solution.
I bethought me at that moment of the inside cotton-wool lining of my cap, on which the rays of the sun had been beating all the morning, and I felt sure that it would quickly catch fire; so teasing out a small piece, I followed Boxall down to the beach, where he was employed in filling the two watch-glasses with water.
But the small part which remains of the original edge furnishes proof in two respects that this was not a watch-glass. In the first place, on taking a careful tracing of this piece of the edge, I found that its curve was part of an ellipse; but watch-glasses, nowadays, are invariably circular.
He motions to the other to pass out before him, and locks the door upon his stuffy little sanctum whose shelves are piled with a heterogeneous confusion of tubes and bottles, books and instruments, specimens of foodstuffs under the process of analysis for values, and carefully-sealed watch-glasses containing choice cultures of deadly microbes in bouillon, before he leads his way down the long corridor, where narrow pallets, upon which sick men and boys are stretched, range along the walls upon either hand, and the air is heavy with the taint of suppurating wounds, and the hot, sickly breath of fever and malaria.
The captain stood as if stupefied, the little professor's eyes were as big as watch-glasses, and the mate had to catch hold of a back-stay to prevent himself from falling. The whole crew now took to the rigging, and the only marvel is that some of them did not slip overboard and make food for the sharks.
Wollaston, and requested to be shown over his laboratories, in which science had been enriched by so many important discoveries, when the doctor took him into a little study, and, pointing to an old tea-tray on the table, containing a few watch-glasses, test-papers, a small balance, and a blowpipe, said, "There is all the laboratory I have!"
He was just with his hand upon the top of the cask, with an air of inexpressible satisfaction beaming upon his ruddy features, and his eyes glowing in profile, from the reflection of the fire, like a couple of watch-glasses.
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