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"And is there a chemistry note-book among them?" "I think so. Here is one that contains mention of C2H6O, H2SO4, and other mystic emblems which appear very tiresome; it also contains several pages filled with diagrams of the yard and plans of Pompeii before the devastation." "Yes," answered West, "that's my chem. note-book. It's been missing ever since Tuesday.
It was thus found that 100 grammes of the oil require 0.34 gramme of caustic potash to neutralize the free acid. Mr. Soc. of Chem. Tea oil compares favorably with olive oil, therefore, in respect of acidity, a quality of which note has to be taken when considering the employment of oil as a lubricating agent.
Mohr of Bonn, advocated the use of a centrifugal machine as a means of rapidly drying crystals and crystalline precipitates; but although they are admirably adapted for that purpose, centrifugal machines are seldom seen in our chemical laboratories. Chem. Analyt.
The incumbent till or boulder clay is about 40 feet thick, but it often attains much greater thickness in the same part of Scotland. Pecten islandicus, Moll. Natica clausa, Bred. Trophon clathratum, Linne. Leda truncata. a. Exterior of left valve. b. Tellina calcarea, Chem. Outside of left valve. b.
"It couldn't have been any of our chemicals, could it?" "Chem ? My eye! Don't you know, old chap? I'll bet Mr. Hooper and Grace have the correct suspicion." "More crooked business? You don't mean " "Sure, I do! Thad, of course. And, Bill, we're going to get him, sooner or later. Mr. Hooper won't want to stand this sort of thing forever. I've got a hunch that we're not through with that game yet."
Copper ores vary widely in composition from the nearly pure copper minerals, such as malachite and copper sulphide, to very low grade materials which contain such impurities as silica, lead, iron, silver, sulphur, arsenic, and antimony. In nearly all varieties there will be found a siliceous residue insoluble in acids. Chem.
Chem. News. In answer to various inquiries concerning the manufacture of this article, we give herewith the process of William Henry Balmain, the original discoverer of luminous paint, and also other processes. These particulars are derived from the letters patent granted in this country to the parties named. Balmain's invention was patented in England in 1877, and in this country in 1882.
Evidently the same apparatus, differently graduated, might be employed to determine the carbonate present in such a substance as crude soda ash or other similar mixture. In such a case the weighed material would be put upon the mercury with water and the small tube filled with acid. Bowdoin College Chemical Laboratory. F.C. Robinson, in Amer. Chem. Jour.
Of these, Amon, god of Thebes, has the most distinguished history, though Chem, the agricultural god of Coptos, and Munt of Hermonthis were originally as important. Amon, the hidden, i.e. the hidden force of nature, like Ptah, is seldom found alone; he is generally combined with some other god, especially with Ra.
Rings and tubes can also be formed on a mandrel, and soldered in the same fashion, and the chemist thus enabled to build up small pieces of apparatus from sheet platinum in the laboratory. Chem. News. The sides of solid bodies, whatever be the degree of hardness, and however fine the texture, possess surfaces formed of a succession of projections and depressions.
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