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Cooling by Evaporation

To John Lining Dear Sir, London, June 17, 1758. In a former letter I mentioned the experiment for cooling bodies by evaporation, and that I had, by repeatedly wetting the thermometer with common spirits, brought the mercury down five or six degrees. Being lately at Cambridge, and mentioning this in conversation with Dr. Hadley, professor…

Observations Concerning the Increase of Mankind, Peopling of Countries, &c.

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1. Tables of the Proportion of Marriages to Births, of Deaths to Births, of Marriages to the Numbers of Inhabitants, &c. form’d on Observations made upon the Bills of Mortality, Christnings, &c. of populous Cities, will not suit Countries; nor will Tables form’d on Observations made on full settled old Countries, as Europe, suit new…

Blackamore, on Mulatto Gentlemen

Set a Beggar on Horseback, &c. Chesh. Mr. Gazetteer, It is observed concerning the Generation of Molattoes, that they are seldom well belov’d either by the Whites or the Blacks. Their Approach towards Whiteness, makes them look back with some kind of Scorn the Colour they seem to have left, while the Negroes, who do…