Important: Safety Warning
This page contains a formula or preparation using substances now known to be dangerously toxic, such as arsenic, mercury, lead, or cyanide compounds. Exposure to these substances can cause severe poisoning, permanent injury, or death.
In addition, this page describes trade processes that use dangerously toxic materials such as cyanide solutions, mercury amalgams, or strong acids. These processes require training, equipment, and precautions far beyond what the text describes.
This information has been left in for historical purposes but should not be acted upon.
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Lemon Color
Into a tub of cold water put 1 pound acetate of lead, previously dissolved; work the goods in this for 15 minutes, and wring out; into another tub of cold water put 6 ounces bichromate of potassa in solution; work the goods for 15 minutes