Two cyphering books belonging to and/or compiled by Joel Ryder (or Rider) of either New York or New Jersey, containing mathematical tables, square roots, computations, etc. One book bears the date 1792, the other 1793. Both soft-bound in cloth. One contains a number of locks of hair.
First page of one book spells the name "Rider".
Collection donated by John Ryder, and Mrs. C.L. DiMarco, 1973, Febuary 13.
Collection is open for research.
Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.