1791 E. Darwin Bot. Garden: Pt. I i. Notes 8 This elastic matter of heat, termed Calorique in the new nomenclature of the French Academicians.]

1792 Philos. Trans. (Royal Soc.) 82 88 The universally diffused caloric or matter of heat.

1801 Monthly Mag. 12 581 The laws of this calorique (or whatever it is to be called).

1825 J. Wilson Noctes Ambrosianae xxiii, in Blackwood's Edinb. Mag. Dec. 764 Poor Vulcan has recently got A lingo that's almost historic, And can tell you that iron is hot, Because it is fill'd with caloric.

1834 M. Somerville On Connexion Physical Sci. (1849) xxv. 238 The rays of caloric which produce the sensation of heat.

1864 F. M. Müller Lect. Sci. Lang. 2nd Ser. xii. 579 Till very lately, Caloric was a term in constant use, and it was supposed to express some real matter.

1794 G. Pearson in Philos. Trans. (Royal Soc.) 84 386 Such a degree of caloric as was just sufficient to melt them.

1799 R. Southey Nondescripts iii, in Poet. Wks. (1838) III. 63 A wretch..Who swells with calorique.

1858 R. W. Emerson Eloquence in Atlantic Monthly Sept. 385/1 The additional caloric of a multitude.

1854 Proc. Amer. Philos. Soc. 1848–53 5 305 The experimental trial of the caloric-engine vessel.

1883 Daily News 10 Sept. 2/1 Two small caloric engines.

1854 Proc. Amer. Philos. Soc. 1848–53 5 305 The experimental trial of the caloric-engine vessel.]

1865 J. R. Mayer On Celestial Dynamics in W. Grove On Correlation Physical Forces (rev. ed.) 275 The velocity of an asteroid when it strikes the sun measures from 445,750 to 630,400 metres; the caloric effect of the percussion is consequently equal to from 27½ to 55 millions of degrees of heat.

1896 F. Hume Myst. Hansom Cab (ed. 2) xxi. 198 To look at them merely was to increase one's caloric condition.

1925 T. Dreiser Amer. Trag. i. viii. 69 Having acclimated himself to this caloric atmosphere.

1969 Sci. Jrnl. May 28/2 The animals were then dried to constant weight and combusted in a calorimeter to give caloric values.