During Lord Rockingham’s administration, and subsequently at the beginning of that of Mr Pitt, some suggestions were made to provide Priestley with a pension to assist in defraying the expense of his inquiries.[14]

He however declined all overtures of this kind, wishing, as he said, to preserve himself independent of everything connected with the court, and preferring the assistance of individuals who were lovers of liberty as well as of science.

His winter’s residence in London threw him constantly into the society of his old friend Franklin; indeed, he says, as members of the same club few days passed without their seeing one another, and their friendship ripened into the closest intimacy.

There can be no doubt that this intercourse with Franklin not only led Priestley to the study of natural science, but quickened and fostered his love of civil and political liberty. Priestley in his autobiography does ample justice to Franklin’s efforts to maintain the union of the American Colonies with this country.

“But Franklin,” says Mr Choate (Inaugural address as President of the Birmingham and Midland Institute, October 23, 1903), “was more than a staunch Loyalist. He was an Imperialist in the most stalwart sense of the word, and on a very broad gauge.”

His biographer, Parton, truly says:—

“It was one of Franklin’s most cherished opinions that the greatness of England and the happiness of America depended chiefly upon their being cordially united. The ‘country’ which Franklin loved was not England nor America, but the great and glorious Empire which these two united to form.”

In writing to Lord Kames, he said:—

“I have long been of opinion that the foundations of the future grandeur and stability of the British Empire lie in America; and though, like other foundations, they are low and little now, they are nevertheless broad and strong enough to support the greatest political structure that human wisdom ever yet erected.”

In 1774 he wrote:—