Talbotype

Our photographic readers are probably aware that the Talbotype process is increasing in favour; we have recorded Dr. Diamond's strong testimony to its advantages.

We are not of opinion that Mr. Talbot could restrain any one from taking collodion portraits, as patentee of the Talbotype process.

Containing Plates by De la Motte, of the magnificent Tessellated Pavements discovered in August and September, 1849, with copies of the grand heads of Ceres, Flora, and Pomona, reduced by the Talbotype from fac-simile tracings of the original; together with various other Plates and numerous Wood Engravings.

The processes called Talbotype and Daguerreotype were nearly simultaneous discoveries.

The photogenic surface, whether it be the Daguerreotype plate, the Talbotype paper, or any other preparation sensitive to light, is placed near the bottom of the inclined plane, F. It is covered by a thin plate of metal, pierced with circular holes, which correspond to the openings of the moveable plate at the moment of the passage of the latter, during which the sensitive surface receives the light wherever the circular holes leave it exposed.