PART II.
PRACTICAL DETAILS OF THE COLLODION PROCESS.
CHAPTER I.
PREPARATION OF COLLODION.
| Mode of preparing soluble Pyroxyline by the mixed Acids—by the Nitre process.—Purification of the Ether and Alcohol.—Preparation of the iodizing compounds in a state of purity | [185] |
CHAPTER II.
FORMULÆ FOR SOLUTIONS REQUIRED FOR COLLODION PHOTOGRAPHS.
| Section I.—Formulæ for direct Positive Solutions.—The Collodion.—The Nitrate Bath.—Developing fluids.—Fixing liquids.—Whitening solution | [201] |
| Section II.—Formula for Negative Solutions.—The Collodion.—The Nitrate Bath.—Developing fluid.—Fixing liquid | [208] |
CHAPTER III.
MANIPULATIONS OF THE COLLODION PROCESS.
| Section I.—Manipulations with moist Collodion.—Cleaning the Plates.—Coating with Collodion.—Exciting.—Exposing.—Developing. —Fixing | [213] |
| Section II.—Simple directions for the use of Photographic Lenses.—Portrait Lenses.—View Lenses.—Mode of finding the chemical Focus | [227] |
| Section III.—On copying Engravings, Etchings, Diagrams, etc.—Mode of intensifying the Collodion | [231] |
| Section IV.—Rules for taking Stereoscopic Photographs.—Mr. Latimer Clark's arrangement for working with a single Camera | [232] |
| Section V.—The Photographic delineation of Microscopic Objects.--Arrangement of the apparatus.—Mode of finding the chemical Focus.—Use of artificial light | [235] |
CHAPTER IV.
THE DETAILS OF PHOTOGRAPHIC PRINTING.
| Section I.—Positive Printing by the ordinary process.—Selection of the paper.—Preparation of Albuminized paper—of plain paper—of Ammonio-Nitrate Paper.—Preparation of the fixing and toning Bath.—Manipulatory details of Photographic Printing.—Mode of washing and mounting the Proofs | [240] |
| Section II.—Positive Printing by Development.—A process on Chloride and Citrate of Silver.—On Iodide of Silver.—On Bromide of Silver | [259] |
| Section III.—The Sel d'Or Process for toning Positives.—Preparation of the toning Bath.—Manipulatory details | [267] |
| Section IV.—On Printing enlarged Positives, Transparencies, etc., upon Collodion | [272] |
CHAPTER V.
CLASSIFICATION OF CAUSES OF FAILURE IN THE COLLODION PROCESS.
| Section I.—Imperfections in Negative and Positive Collodion Photographs.—Fogging.—Transparent and opaque spots.—Markings of all kinds—under- and over-exposure, etc. | [276] |
| Section II.—Imperfections in Paper Positives | [285] |
CHAPTER VI.
LANDSCAPE PHOTOGRAPHY BY THE COLLODION PRESERVATIVE AND COLLODIO-ALBUMEN PROCESSES.
| The Honey Keeping Process.—The Oxymel Process.—Photography on dry Collodion.—Taupenot's Collodio-Albumen Process | [288] |