Helical Epicycloids and Derivatives / S.B. Barnaby. 1895. [Contains 250 drawings. At front of volume, stuck in, is a letter, 1913 Jun 2, from Burnaby's widow to Richard Inwards, the designer of the machine (made by Burnaby) which produced the drawings, and a note of 1913 Jun by Inwards re the machine and the drawings] Helical Epicycloids and Derivatives, S.B. Barnaby. 1895. 1895