94

Astronomy,

Examples. Of the Orrery : anrical Account of the Invention and ^provements thereof A Description of " •Armillary Sphere. Of the MoT*°of the Ea r t h about . its Axis, and d 0 '

A'

the Sun. The Vicissitudes of theSZ"Sons explained. Of the various Leng'T 1 'c/’Days W Nights. The -Thirdstion of the Earth ; the great Plato 1 ' 1

Year; the Recession of the EquiNO^,,explained. A Calculation of the hod l JTime of the Day. The Doctrine ofand Lunar Eclipses fully explained , ”

■ Calculations on a Mathematical The° r yAn Explanation of the Astronomy -Comets. A new Method for Const^tion of their Orbits. Calculations ^lating to the whole Theory of Cotfd 1An Analytical Investigation of their -y|liptic Orbits. Of their Tails, and ^other Phænomena accounted for on the Tnuine Principles of Physics.

I Shall in this Lecture endeavour to ^ihibit to you a jus and natural ld$ jthe Mundane or Solar Syftem , that is, ^System of the World ; consisting of 1 ,Sun ; the Primary Planets , and theirdaries, or Moons ; the Comets ; and the

St