โ Scribed by C. Tuttle; A.P.H. Trivelli
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
due to the gradual production of a gray deposit on the inside of the tube, which is possibly mercury silicate. Or it may be due to a change in the gaseous composition in the tube. Observation suggests that it is mainly due to the high temperature, and that it might be beneficial to cool the lamps wh
## THE UNEXPOSED EMULSION . WHEN a photographic emulsion is examined under a microscope, the sensitive silver halide which is distributed in the gelatine is seen to consist of crystals of several forms and of many different sizes (Fig. I) . These crystals are chiefly in the form of triangles or he
## Abstracf Electrochemical models for photographic development allow the selectivity of the process to the rationalized. In the case of physical development, the development nucleus obviates the excess surface free energy associated with addition of silver(O) to particles below a threshold size.