The radix. A new way of making logarithms. This rule, by one hundred logarithms, constructs the logarithms to all numbers, from 1 to 100000000000000000000. ... In five problems. By Robert Flower.
Flower, Robert.
London : printed for the author; and sold by J. Beecroft,
1771.
ESTC
Also reproduced on microfilm. Woodbridge, CT: Research Publications, Inc., 1983. The Eighteenth Century ; reel 303, no. 8.