Page:American Journal of Mathematics Vol. 2 (1879).pdf/55

48 from Dr. Dee, while, on the other hand, they establish the conclusion about the translation to which De Morgan's sagacity had led him, that "It was certainly made from the Greek, and not from any of the Arabico-Latin versions."

To the one sentence of comparison in proof of this published by De Morgan, Billingsley's autograph indications would enable me to add as many as any one desired, but suffice it to say, that the definition of the Eleventh Book are alone entirely decisive of the matter.

January 9, 1879.