Rara arithmetica: a catalogue of the arithmetics written before the year MDCI, with a description of those in the library of George Arthur Plimpton of New York.
- 4th ed., including A. De Morgan's Arithmetical books, published at London in 1847
- New York: Chelsea, 1970.
- xviii, 725 p.: illus., facsims., 21 cm.
Includes the author's "Addenda to Rara arithmetica which described in 1908 such European arithmetics printed before 1601 as were then in the library of the late George Arthur Plimpton" (p. [499]-548) first published in 1939.