Uranoscopia; or, The contemplation of the heavens. Being a demonstration of the equation of time. With the method of observing the solar ingresses into any point of the ecliptic ... The determination of the greatest elongation of Venus & Mercury from the sun. Of the mean motion of the earth ... Also, an explanation & demonstration of the Keplerian & Flamsteedian methods of computing the times, & principal appearances of solar eclipses ..
Leadbetter, Charles, active 1728