Of great importance is the chemical identity of the diamond, graphite and charcoal, a fact demonstrated in part by Lavoisier in 1773, Smithson Tennant in 1796, and by Sir George Steuart-Mackenzie (1780-1848), who showed that equal weights.
STEWART, Stuart or Steuart, the surname of a family which inherited the Scottish and ultimately the English crown.
It had "been treated in such a manner by some of the French economists, occasionally by Montesquieu, and, among English writers, by Dr Franklin, Sir James Steuart, Arthur Young and Rev. J.
Monatsber (1879); Texier, Asie mineure (1862); Steuart, Ancient monuments of Lydia and Phrygia, besides the special chapters in the geographical treatises of Cramer, Vivien St Martin, Forbiger, &c., numerous articles by recent travellers; J.