>>7452663“Place a well-cleaned copper plate in an earthenware vessel.
Cover it first by copper sulfate and then moist sawdust.
After that put a mercury-amalgamated-zinc sheet on top of
an energy known by the twin name of Mitra-Varuna. Water will
be split by this current into Pranavayu and Udanavayu. A
chain of one hundred jars is said to give a very active
and effective force.” –Agastya Samhita (Indian Princes’ Library)
