A plain method of determining the parallax of Venus : by her transit over the sun: and from thence, by analogy, the parallex and distance of the sun, and of all the rest of the planets. By James Ferguson.
Ferguson, James,1710-1776.
London : printed for, and sold by the author; and also by Mr. Millar; Mr. Nairne, optician; and Mr. Watkins, optician,
1761.
ESTC
England London.