ABRAM STEVENS HEWITT (1822-1903), American manufacturer and political leader, was born in Haverstraw, New York, on the 31st of July 1822.
With Edward Cooper (son of Peter Cooper, whom Hewitt greatly assisted in organizing Cooper Union, and whose daughter he married) he went into the manufacture of iron girders and beams under the firm name of Cooper, Hewitt & Co.
The quinonoid structure of many coloured compounds has been proved experimentally, as, for example, by Hewitt for the benzene-azo-phenols, and Hantzsch for triaminotriphenyl methane and acridine derivatives; but, at the same time, many substances cannot be so explained.
Hewitt in 1900 (Zeit.
Although the theories of Meyer and Hewitt do not explain (in their present form) the behaviour of anthranilic acid, yet Hewitt has shown that his theory goes far to explain the fluorescence of substances in which a double symmetrical tautomerism is possible.
A corps of specialists - Boas, Dall, Dorsey, Gatschet, Hewitt, Mooney, Pilling, J.
Hewitt, the Tammany candidate, and received a smaller vote than Henry George, the candidate of the United Labor party.
Hewitt has also attacked the problem by brominating the oxyazobenzenes, and has shown that when the hydrobromic acid produced in the reaction is allowed to remain in the system, a brombenzene-azo-phenol is formed, whilst if it be removed (by the addition of sodium acetate) bromination takes place in the phenolic nucleus; consequently the presence of the mineral acid gives the azo compound a pseudo-quinonoid character, which it does not possess if the mineral acid be removed from the sphere of the reaction.
Wright, An Essay towards the History of Hexham (1823); James Hewitt, A Handbook to Hexham and its Antiquities (1879).
Hewitt, American Anthropologist, N.S., iv.
Hewitt and F.
From Delhi, was an important military station, under the command of Colonel Archdale Wilson: the district was commanded by General Hewitt, one of the old and inefficient officers whom the rigid system of The outbreak at seniority had placed in so many high commands.
But Hewitt was too old and Wilson was lacking in initiative; the opportunity was lost, and no attempt was made to do more than clear the cantonments.