The pharmacopoeia of the Royal College of Physicians of London / Translated into English, with notes ... by Thomas Healde.

Date:
1796
Catalogue details

Licence: Public Domain Mark

Credit: The pharmacopoeia of the Royal College of Physicians of London / Translated into English, with notes ... by Thomas Healde. Source: Wellcome Collection.

    30/424 (page 4)
    a rnixed metal of which any part is copper or lead, we wifh to fee the ufe of them en- tirely exploded. The Thermometer which we employ is that of Fahrenheit. By a boiling heat* (calor fervent) muft be underftood an heat from 200 to 212 de- grees. By a gentle heat (calor lenis) is meant an heat from 90 to 100 degrees. Whenever we ufe the words specific gravity, we fuppofe the fubfiance men- tioned to be of a temperature equal to 55 degrees of heat. * Although the heat of boiling water is 212 degrees, yet, on removing the veflel containing it from the fire, its heat is fomewhat lefs; and as the word fervens is chiefly ufed in the directions for infufions and folutions, the word boiling may not be an improper tranflatiou of it. MATERIA