"One-thousandth" Quotes from Famous Books
 ... the case. Also, in 1779, the comet known as Lexell's passed quite close to Jupiter, and its orbit was so changed by that planet's attraction that it has never been seen since. The density of comets must, as a rule, be very much less than the one-thousandth part of that of the air at the surface of our globe; for, if the density of the comet were even so small as this, its mass ...
— Astronomy of To-day - A Popular Introduction in Non-Technical Language • Cecil G. Dolmage |
