We are probably nearing the limit of all we can know about astronomy.
My father was the most rational and the most dispassionate of men.
Though born in Nova Scotia, I am of almost pure New England descent.
One hardly knows where, in the history of science, to look for an important movement that had its effective start in so pure and simple an accident as that which led to the building of the great Washington telescope, and went on to the discovery of the satellites of Mars.
In 1860 a total eclipse of the sun was visible in British America.
Aerial flight is one of that class of problems with which men will never have to cope.