Modern microscopy; a handbook for beginners and students (1912)
Cross, M. I, Cole, Martin J · Chicago, Chicago Medical Book Co. · leaf 275
gwhich I filled a large bottle with water condensed by means ofthe ring-net. Everyone who has worked at pond-life will have experiencedhow awkward it is to examine with a pocket lens, and at thesame time attempt to pick out a particular animal in order toplace it under the microscope. In order to… … Fig. 82. way that it allows the lens to be moved all over the surface, butin one plane only, parallel to the side of the window aquarium,whilst the lens is focussed by a small rack and pinion on theleft. The whole apparatus is screwed to a small woodenstand, on which the tank is placed. The lens…
Microscopy
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