Not quite on the subject of mortar, but too good not to share -
Asher Benjamin's "American Builder's Companion", 6th edition, 1827, includes ornamental stucco patterns and instructions, with this footnote:
"The stucco is made of lime putty, mixed with pulverized marble, or raw plaster of Paris, with sometimes a little white sand and a little white hair, to prevent it from cracking. The mixture is then put on a dry wall for 24 hours, after which it is taken off and well beaten, and put on again.…
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Posted on November 20, 2009 at 11:19am —