This section is from the book "Cassell's Cyclopaedia Of Mechanics", by Paul N. Hasluck. Also available from Amazon: Cassell's Cyclopaedia Of Mechanics.
One kind is made by dissolving 1 part of oxalic arid in In parts of water. Another kind can be made by adding 1 part of chloride of lime and ,1/16 part of strong- acetic acid to 10 parts of water. Oxalic acid is a powerful poison, and should therefore be handled carefully. Chloride of lime solution should be kept in small closely stoppered bottles.
 
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