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 191
d-a-half to one-eighth of aninch; Messrs. Powell and Ross, on the contrary, alwayssupply distinct combinations. The object-glasses made on theContinent consist of sets of three or more, screwed one uponthe other; of these, the first, second, or third may be usedseparately or combined, by this means… … MAGNIFYING POWEKS. 151 fe.— Compound achromatic microscope, as manufactured by ourbest makers, is represented by fig. 106, where o is an object,and above it is seen the triple achro-matic object-glass, in connection withthe eye-piece E E, FF, the planoconvexlens E E being the eye-glass, and F Fthe…
Microscopy
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