Papers of John Guy Porter

A copy of Porter's script for 'The Night Sky in October' on ten years of 'The Night Sky'; the Pleiades in the east; the increase in the number of minor planets and comets known over the 10 years, three new satellites discovered, and the retrograde motion of the 12th Jovian satellite; Miranda (Uranus' moon) and Nereid (Neptune's second moon), both discovered by Dr Kuiper; the 200" Mount Palomar telescope, which began working in 1949, with the 48" Schmidt working in tandem; new instruments for studying the Sun; the doubling of our estimates of the size of the universe due to the 200" telescope, and the revision of the distance to the Andromeda Nebula, such nebulae now known to be independent galaxies; magnetic fields in space and their importance in the structure of the universe; and confirmation of the spiral nature of the Milky Way, radio astronomy, electronics in astronomy, the use of television with telescopes, and a prediction that more than 10 years will pass before the advent of the remote control of telescopes.