 | 1771 - 494 pages
...alcohol will have disappeared, and the liquid will have acquired a peculiar but agreeable vinous odour. It is in this state that I prefer to employ it. 6....solution is made of nitrate of silver, containing about seventy grains to one ounce of water. To three parts of this add two of acetic acid. Then if the prepared... | |
 | Industrial arts - 1852 - 450 pages
...results are much influenced Z* this part of the process. 3. Dip the plate into this solution, and in. let it dry spontaneously. Faint prismatic colors will...is rapidly dipped once or twice into this solution, . Eiires a very great degree of sensibility, and it ought then to be in the camera without much delay.... | |
 | Robert Hunt - Light - 1854 - 458 pages
...alcohol, will have disappeared, and the liquid will have acquired a peculiar, but agreeable, vinous odour. It is in this state that I prefer to employ it. "...solution is made of nitrate of silver, containing about seventy grains to one ounce of water. To three parts of this add two of acetic acid. Then, if the prepared... | |
 | Photography - 1880 - 658 pages
...alcohol will have disappeared, and the liquid will have acquired a peculiar but agreeable vinous odour. It is in this state that I prefer to employ it. —...solution is made of nitrate of silver, containing about seventy grains to one onnce of water. To three parts of this add two of acetic acid. Then, if the prepared... | |
 | Smithsonian Institution. Board of Regents - 1905 - 1062 pages
...acquired a peculiar but agreeable vinous odor. It is in this state that I prefer to employ it. (!. Into the iodide thus prepared and modified the plate...of nitrate of silver, containing about 70 grains to 1 ounce of water. To 3 parts of this add '2 of acetic acid. Then, if the prepared plate is rapidly... | |
 | Physics - 1852 - 1172 pages
...alcohol will have disappeared, and the liquid will have acquired a peculiar but agreeable vinous odour. It is in this state that I prefer to employ it. 6....moderate daylight, avoiding however the direct solar ray*. 7. A solution is made of nitrate of silver, containing about 70 grains to one ounce of water.... | |
 | United States - 1905 - 1078 pages
...an aqueous solution of proto-iodide of iron add, first, an equal volume of acetic acid, and then 10 volumes of alcohol. Allow the mixture to repose two...of nitrate of silver, containing about 70 grains to 1 ounce of water. To 3 parts of this add 2 of acetic acid. Then, if the prepared plate is rapidly dipped... | |
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It is in this state that I prefer to employ it. 6. Into the iodide thus prepared and modified the plate is dipped for a few seconds. All these operations may be performed by moderate daylight, avoiding, however, the direct solar rays. 7. A solution is... 