Waste of the Tail-making Material of Comets, 283.
Water, Hot, and the Sun, 14.
Water-mill turned by Sun, 16.
Water on Moon, 127.
Waterloo, 68, 337.
Wednesday, 135.
Weighed, How Planets are, 142.
Weighing Scales for Comets, 276.
Weight of Jupiter, 214.
” ” Mercury, 149.
” ” Uranus, 243.
Weights on the Moon, 127.
” ” ” Sun, 132.
What Nebulæ are made of, 359.
” Stars are made of, 347.
Wind, Cause of, 14.
Wind-mill turned by Sun, 15.
Worcester’s Dictionary, Use of, 269.