Calendar: 1859-1860 Page 121

applied sciences 121 Developing Solutions -Use of Sulphate of Iron to restrain excessive intensity-of Acetate of Soda to increase intensity- -Mode of Pushing the Development Failures in the Negative Process -Spots Markings Defective Development &c -Specimens of Perfect Negatives photographic printing Preparation of the Sensitive Papers -English and Foreign Papers-Details of the Albumen Process-of the Plain Paper Process of the Process with Ammonia Nitrate Use of Organic Matters in varying the Colour-how to Print feeble and intense Negatives Toning the Prints -With Hyposulphite and Gold-with Sel d'Or-with Alkaline Solution of Chloride of Gold after fixing-with Fulminating Gold in Hyposulphite of Soda photographic printing-continued Fading of Photographs -Its Causes explained how to obviate them-Sulphur Toning-Gold Toning-best Mode of Washing and Mounting Prints Printing hy Development -With Chloride of Silver and Gallic Acid-Toning with and without Gold Stereoscopic Transparencies -On Collodio-Albumen developed with Pyrogallic Acid taupenot's collodio-albumen process Mode of rendering Collodion limpid and adhesive-Prepa- ration of the Dry Plates-their Development by Gallic Acid- by Pyrogallic Acid-the Apparatus required for Field-work stereoscopic photography &c Stereographs -The Apparatus-Modifications in Developing the Negatives-How to Mount the Prints-Use of dark Box for taking Stereoscopic Pictures in the Open Air Copying Prints and Drawings by Photography -Collodion best adapted for the Purpose-Adjustment of the Apparatus- Correct Mode of Developing photographic manipulations These are conducted by the Students themselves under the superintendence of the Lecturer for which purpose complete sets of Apparatus and Chemicals have been provided