ed to the works on the subject will enter the front of the plate holder and exclude the whose charge the matter was placed, had paper pat- light. of photography. The amateur who possesses one of terns cut out representing what they considered the the microscopes described in a previous article of… … secured in place by paper from satisfactory, while a SIMPLE PHOTOGRAPHIC CAMERA. rings, shown in Fig. 3, the sixteen candle coal gas will inner rings being glued in always be accepted as of place, the outer ones being made removable for con- series may arrange it for projection as described on good…
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