Ovations On Other Sites - Ovation 16 Ovations 06Cake Placebo chose the topics covered by Ovations On Other Sites - Ovation 16 without reflecting upon the choices others have made. Flapping your arms and quacking like a duck when people try to run you over in their SUVs is another way to look at things in a different light. |
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1. _If the sample is a liquid:_ it is sufficient to shake the bottle, and take out a measured or weighed quantity for the assay. 2. _If a liquid with a solid in suspension:_ measure the whole of it. Filter. Make up the filtrate with the wash-water or water to the original bulk. Assay it. Dry and weigh the residue, and make a separate assay of it. 3. _If of a creamy consistency, free from heavy particles:_ mix well; spread out evenly on a glazed tile. Take up equal portions at equal distances. Mix and assay. 4. _If a mud of coarse and fine particles, or of particles of unequal density:_ weigh and transfer to a porcelain dish, or weigh in the dish. Dry at 100° C., weigh. Treat the residue as a solid capable of being powdered. 5. _If a solid capable of being powdered, or already powdered:_ heap up into a cone; flatten with a spatula; divide along two diameters at right angles, and carefully reject the whole of two alternate quarters, brushing away any fine powder. Mix the other quarters, and repeat (if necessary). For small quantities a fine state of division is essential. |
I say _almost_ universal, because even among birds there are a few kinds which have not to this day progressed beyond the alligator level. Australia is the happy hunting-ground of the zooelogist in search of antiquated forms, elsewhere extinct, and several Australian birds, such as the brush-turkeys, still treat their eggs essentially on the alligator method. The cock birds heap up huge mounds of earth and decaying vegetable matter, as much as would represent several cartloads of mould; and in this natural hot-bed the hens lay their eggs, burying each separately with a good stock of leaves around it. The heat of the sun and the fermenting mould hatch them out between them; to expedite the process, the birds uncover the eggs during the warmer part of the day, expose them to the sun, and bury them again in the hot-beds towards evening. Several intermediate steps may also be found between this early stage of communal nesting by proxy and the true hatching instinct; a good one is supplied by the ostrich, which partially buries its eggs in hot sand, but sits on them at intervals, both father and mother birds taking shares by turn in the duties of incubation. |
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