An ash-covered forge, a cabinet organ, a rusty stove with an old pivot chair, a bench well stained with oils and acids, completed the equipment of this curious den, into which the sunlight filtered through the chemical jars and fell in coloured patches along the dusty floor.
The moving spirit of this haunt by day and night is well described as an overgrown school-boy. He is a man of a slim, but wiry figure, about five feet ten inches in height. His face at this period was juvenile and beardless. The nose and chin were shapely and prominent, the mouth firm, the forehead wide and full above, but not very high. It was shaded by dark chestnut hair, just silvered with grey. His most remarkable features were his eyes, which are blue-grey and deeply set, with an intense and piercing expression. When his attention was not aroused, he seemed to retire into himself, as though his mind had drifted far away, and came back slowly to the present. He was pale with nightwork, and his thoughtful eyes had an old look in serious moments. But his smile was boyish and pleasant, and his manner a trifle shy.
There was nothing of the dandy about Edison, He boasted no jewelled fingers or superfine raiment. An easy coat soiled with chemicals, a battered wide-awake, and boots guiltless of polish, were good enough for this inspired workman. An old silver watch, sophisticated with magnetism, and keeping an eccentric time peculiar to it, was his only ornament. On social occasions, of course, he adopted a more conventional costume. Visitors to the laboratory often found him in his shirt-sleeves, with dishevelled hair and grimy hands.
The writer of 'A Night with Edison' has described him as bending like a wizard over the smoky fumes