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.
Pottery
Pottery (To manufacture English)
To manufacture English Stoneware. Tobacco-pipe clay from Dorsetshire is beaten much in water; by this process the finer parts of the clay…
Chinaware
erly selected, carefully washed from impurities, and again dried. It is then finely sifted, and most accurately mingled with quartz, ground…
Another (Take of lead parts and of tin)
Take of lead, 3 parts, and of tin, 1 part. Calcine them, and then take of this matter and of calcined flints and common salt, each, 2…
Pottery (Take of tin any quantity)
Take of tin, any quantity, and enclose it in clay or loam and put it in a crucible. Place the crucible in a fire, that the tin may calcine…
Another (Take parts of white glass part)
Take 4 parts of white glass, 1 part of antimony, 3 parts of red-lead, and 1 part of iron scales. Fuse the mixture. Another. Take 16 parts…