An Adventure in Photography (Google eBook)

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Charles Scribner's Sons, 1893 - Photography - 179 pages
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Page 85 - ... of water and add to the bulk of solution, and the bath is ready. This fixing bath will not discolor until after long usage, and both clears up the shadows of the negative and hardens the film at the same time.
Page 85 - It remains clear after frequent use, does not discolor the negatives, forms no precipitate upon them, and hardens the gelatine to such a degree that the negatives can be washed in warm water, provided they have been left in the bath a sufficient time. The plate should be allowed to remain in the bath five to ten minutes after the bromide of silver appears to have been dissolved. The permanency of the negative and freedom from stain as well as the hardening of the film depend upon this.
Page 115 - Dissolve fifteen grains of chloride of gold and sodium in fifteen ounces of water. Take of this solution three ounces, pour it in the toning dish, test for acidity with litmus paper, and neutralize with bicarbonate of soda, and add thirty grains of acetate of soda and thirty ounces of water. Prepare the solution an hour before using it. If warm tones are wanted add a little acetic acid to the last washing water. For this bath the sensitizing silver should be neutral, for which purpose a small portion...
Page 33 - WHAT, and how great, the Virtue and the Art To live on little with a cheerful heart, (A doctrine sage, but truly none of mine,) Let's talk, my friends, but talk before we dine.
Page 81 - No. 1 8 ounces No. 2 1 ounce If more contrast is required, increase the amount of No. 1; if less, more of No. 2. The developer can be used repeatedly by adding each time a little of each of fresh solutions Nos. 1 and 2, according to above proportions. For developing a number of negatives at once, take 9 ounces of No. 1; 3 ounces of No. 2, and water 12 ounces.
Page 122 - The exposure varies with the intensity of the negative and the quality and intensity of the light, but may be approximately stated to be, using as thin a glass negative or film as will make a good print, one second by diffused daylight, or ten seconds at a distance of one foot from a No. 2 kerosene burner.
Page 116 - DR. LIESEGANG'S TONING BATH. With Carbonate of Lime (Chalk). Water 1 litre Chloride of gold 1 gram Carbonate of soda 15 grams Chalk 5 grams After twelve hours the bath is perfectly clear and colorless, when it is ready for use. It is very chirable, and gives fine tones. 99. TONING BATH FOR READY SENSITIZED PAPER. A. Water 1 litre Chloride of gold 1 gram B. Water 1 litre Borax 10 grams Tungstate of soda 40 grams 10O.
Page 105 - A FEW REMEDIES AGAINST BLISTERING OF ALBUMEN PAPER. Do not dry the paper by excessive heat. Avoid acidity in solutions. Moisten the print before washing with a sponge saturated in alcohol. Immerse the print, before fixing, in a weak alum bath. Add a trace of aqua ammonia to the fixing bath. Add one-tenth part of alcohol to the ordinary toning bath.
Page 115 - THE CHAUTAUQUA TONING BATH. Dissolve 15 grains of chloride of gold and Sodium in 15 ounces of water. Take of this solution 3 ounces, pour it in the toning dish, test for acidity with litmus paper, and neutralize with bicarbonate of soda, and add 30 grains of acetate of soda and 30 ounces of water.
Page 86 - Hyposulphite of soda 1V^ ounces The solution must be made in this order, filtered, and be kept in tightlyclosed bottles ; and as under the influence of light the ferric salt is reduced to ferrous, the preparation must be kept in subdued light.

References from web pages

Geometry.Net - book_author: Thanet Octave
French, Alice (18501934) (Author) Born in Andover, Massachusetts, Ms. French wroteunder the pseudonym Octave Thanet and authored An Adventure in Photography ...
www5.geometry.net/ detail/ book_author/ thanet_octave_page_no_3.html

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