An account of the rotula arithmetica invented by Mr. George Brown, Minister of Kilmaures. Together with instructions how to use it.
Brown, George,1650-1730.
Edinburgh : Printed for the author,
M. DCC. [1700]
Errata sheet at end.
Wing (2nd ed.)
ESTC
Aldis, H.G.  Scotland,
Arithmetic
Geometry
Scotland Edinburgh.