Meanings of naphthaline in английском

Z: "Will you also call at the chemist's and get me some naphthaline?"

It is said, however, that a Strasbourg physician has found in naphthaline an absolutely trustworthy remedy.

There is a smell of naphthaline.

This again points to the probability of an odour, although this is contradicted by my experiment with the naphthaline.

Some contained naphthaline; others the essential oil of spike-lavender; others petroleum, and others a solution of alkaline sulphur giving off a stench of rotten eggs.