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 168
ACCESSORY INSTRUMENTS. 127 Phial Holder.—This instrument, the contrivance of Mr.Varley, is represented in elevation by fig. 86, and in sectionby fig. 87. It consists of a tube of brass about an inch-and- … a-half in diameter, and two or more inches in length, havingan oval hole cut out at the top, and a smaller tube attached tothe lower side, immediately opposite the hole; within this lastslides a still smaller tube, provided in its interior with stopslike those in the dark chamber, fig. 50, and a…
Microscopy
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