NITRATE OF SILVER SOLUTION,
For adding to the gallic acid during development, is composed of
| Fused Nitrate of Silver | 30 | grains. |
| Distilled Water | 1 | ounce. |
For adding to the gallic acid during development, is composed of
| Fused Nitrate of Silver | 30 | grains. |
| Distilled Water | 1 | ounce. |