The person who wishes to understand the higher departments of chemistry, or to pursue them in their most interesting relations to the economy of Nature, ought to be well-grounded in elementary mathematics; he will oftener have to refer to arithmetic than algebra, and to algebra than to geometry. But all these sciences lend their aid to chemistry.

Consolations in Travel: Or, The Last Days of a Philosopher, Dialogue the Fifth (p. 172), Cassell & Co., Ltd. 1889