1To John Adams from Dudley Leavitt, 7 April 1802 (Adams Papers)
I some weeks since had the pleasure of seeing an advertisement issued by your order, for the purpose of encouraging discoveries relative to Light & Heat.—Such a laudable stimulus to the promotion of Science from so eminent a Patron of useful Knowledge, must, I think, meet the approbation it merits, and contribute to useful discoveries, not only by exciting the emulation of the aspiring &...