Out of the facts of chemistry the constructive imagination of Dalton formed the atomic theory.
The atomic theory may be advantageously resorted to, in this predicament.
Here is the beginning of the atomic theory; and yet Dalton's strictly chemical experimental work lies in the future.
This, it will be seen, was the parent of our present atomic theory.
It possesses the same merits in relation to Geometry that the atomic theory has in relation to algebraic calculus.
Apart from the atomic theory there is no obvious reason why this should be so.
We are told, for example, that the theory of gravitation is at best a hypothesis, and that such is the atomic theory.
The establishment of the atomic theory now engaged most of his time and attention.
We mean, of course, the atomic theory of Leucippus and Democritus.
His theory of the universe was based on the atomic theory of Democritus.