E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
Sparkling Heat.
Heat greater than white heat.
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“There be several degrees of heat in a smith’s forge, according to the purpose of their work: (1) a bloud-red heat; (2) a white flame heat; (3) a sparkling or welding heat, used to weld barrs or pieces of iron.”—Kennett: MS. Lansd., 1033, f. 388.
