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Image from page 23 of "Science Gossip" (1900)

Image from page 23 of
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Identifier: sciencegossip6691900lond
Title: Science Gossip
Year: 1900 (1900s)
Publisher: London
Contributing Library: Natural History Museum Library, London
Digitizing Sponsor: Natural History Museum Library, London

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Text Appearing Before Image:
e done with the simplest appara-tus, but some form of dissecting microscope or standis a great convenience, and an actual necessity wheremuch or prolonged work is done. The microscopeitself can be used together with the lowest-powerobjective, but in this case the image will of course beinverted, unless what is billed an erecting lens beused. To protect the stage, Mr. Wests table stage,described and figured in Science Gossip, Vol. VI.,N.S., page 30, is a most simple and practical device ;it is provided with hand-rests, and can be used alsoas a mounting-table. There are, of course, differenttypes of dissecting-stands made by the opticians, ofwhich, perhaps, the cheapest is Leitzs small dissectingmicroscope, sold at 20s. without lenses. As we arewriting primarily, however, for those who want toeconomise as much as possible, we illustrate here asmall stand that can be made at home by any oneable to use his hands, and that will cost but afew shillings. The design itself is not original, as

Text Appearing After Image:
Fig. 1. Home-made Dissecting-stand. a similar but more elaborated stand is figured inopticians catalogues at two guineas and upwards.The drawings almost explain themselves. The totallength should be about 14 inches, and the widthabout 4 inches. The sloping rests for the handsmight be, say, 2 inches high at the lowest ends, and4 inches at the highest. This latter measurement,however, should be governed by the size of the mirror,which must have ample room to swing. The mirroritself is a simple penny mirror such as can be boughtat any toy-shop, and it is let into a piece of woodwhich swings on wooden or metal pivots betweenthe two centre uprights. This piece of wood couldbe hinged to the bottom of the stand instead ; but inthat case the mirror would not remain central whenlifted at an angle. A little more skill would berequired to arrange universal movements. The stageis a piece of plate-glass 5 inches x 4 inches, groundat the edges, and can be ordered at any glaziers. Itlifts out, if ne

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Date: 2014-07-29 19:41:38

bookid:sciencegossip6691900lond bookyear:1900 bookdecade:1900 bookcentury:1900 bookpublisher:London bookcontributor:Natural_History_Museum_Library__London booksponsor:Natural_History_Museum_Library__London bookleafnumber:23 bookcollection:biodiversity BHL Collection BHL Consortium

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