e inside a light tight box, lenses, in connection with the source of light em ployed, cember and January have been received and are (shown in Fig. 1, just below the camera bellows) is a stain used upon the subject to be photographed, if a 90-degree prism mounted in such a way that all of the… … The plate holder is inserted and the dark slide drawn No great geographical discoveries have been recorded leaving the plate exposed inside the camera bellows. COPEPOD, 250 DIAMETERS, 1-40 SECOND EXPOSURE. during 1899, but a great deal of exploration work has The movements of the animal are easily…
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