A practical treatise on the use of the microscope, including the different methods of preparing and examining animal, vegetable, and mineral structures (1848)
Quekett, John, 1815-1861 · London, H. Bailliere · leaf 87
rs. Powell and Lealand havecontrived a form which is represented by fig. 31; it consists of a brass foot, orbase b, about fiveinches in diameter,and an inch and ahalf thick; to makeit more steady, it maybe loaded with lead;from this foot risesa triangular stem a,about twelve inchesin length, having… … THE SIMPLE MICKOSCOPE. 53 arm f9 nine inches long, wliich is provided, at its free end a,with a stout ring g, into which either a compound body maybe screwed, as seen in fig. 32, or a lens I set in a large cell may drop. The com-pound body, it willbe seen, has also arack and pinion mo-tion of one…
Microscopy
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