. Transactions of the Royal Society of New Zealand. finely and add smallquantities of some antiseptic, and dust it over the wound. Now as to the methods to be adopted to clean and mountthe diatoms in this deposit. The first thing to be done is todisintegrate the earth. This can be done (a very slow process)by soaking the earth a very long time in water and letting itcrumble, and then carefully washing out the clay. A muchquicker plan has been suggested by M. Parmentier, a pro-fessor of chemistry in Belgium, and was communicated by ]VLGuimard to the Quekett Club.* It consists in the supersatura
. Transactions of the Royal Society of New Zealand. finely and add smallquantities of some antiseptic, and dust it over the wound. Now as to the methods to be adopted to clean and mountthe diatoms in this deposit. The first thing to be done is todisintegrate the earth. This can be done (a very slow process)by soaking the earth a very long time in water and letting itcrumble, and then carefully washing out the clay. A muchquicker plan has been suggested by M. Parmentier, a pro-fessor of chemistry in Belgium, and was communicated by ]VLGuimard to the Quekett Club.* It consists in the supersaturation of the earth by someneutral salt, and then recrystallizing it. The crystals penetratein every direction; then, when redissolved, the earth breaksup into a fine powder. More exactly, place a few small frag-ments of the earth, the size of peas, in a test-tube, and coverthem to about 2 centimetres with acetate of soda, and add a * Joum. Quekett Club, Dec, 1887. Uratmnjttatt* Ifma J^ateijir f a$HM$, vol. xxi. pi. xix. COBMACKS S/D///G J^&JL-. Si. OiaLicuta, limestone . ~b. ~Volc&ni& <^ylce. C.^JtenrceL s&mi-£usecL ooze, cL. SDiaUCGznsuzeovLS ooze Jz-jr^i^jr-. Jtfarz cslcsureotxs J/JCKSO/YS Ml
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1888
