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men, no matter how badly disfigured, than a hopefully reconstructed mosaic, no matter how artistic. For some purposes one could use more radical "relaxing" procedures instead. Browne seems to have used only cool water vapour or sometimes liquid water. Careful application of hot steam can relax most specimens that otherwise could not be re-set. One good trick (Beware of the risks of cuts and scalding if your apparatus should burst!) is to boil water in a closed vessel, leading the steam out into a tube, preferably of silicone rubber, tipped with a drawn glass tube or the blunted needle of a syringe. Direct steam at the parts that need relaxing. With practice you often can relax legs or wings one at a time, stopping as soon as they reach the desired position. * Note too, that Browne is cheerful about mounting some insects by gumming their feet (tarsi) to card. For entomological purposes this has severe disadvantages. Nowadays professionals hardly ever use any means of setting that prevent one from examining a specimen from all sides. Even mounting them on a transparent material tends to interfere with proper examination. For most purposes pin the insects using what Browne called "flat" setting, high on the pin, with the label beneath. Where this is not practical, such as for tiny specimens, there are other methods, which you may see described in manuals or used in museums. * Note: Browne wrote in pre-decimal days, using largely the so-called Imperial units. This might raise difficulties in understanding his quantities. E.g. his dram or drachm (drm) probably was 0.125 ounce (roughly 3.5 grams). His pound would be sixteen ounces (oz.) of 28.35 grams, but his pint would be twenty fluid ounces (not 16 as in American pints!) Correspondingly his gallon would be ten pounds, not eight. A grain would be about 65 mg. Of other units and utensils apparently common in Browne's day, such as "six-pound Australian meat tins", or "goffering-irons", make what sense you may. A "wine-bottleful" was probably about 700 cc. * Note: I have had little use for hexavalent chrome compounds but one thing I did notice in experimenting with a few of Browne's recommendations ("bichromates", "chromic acid" etc), is that the merest few drops of such compounds (typically as a solution of potassium dichromate or chromate) added to water containing soft creatures such as molluscs, generally will kill them gently by paralysis and leave them relaxed. Us
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