Collection Overview A letter (1776 Oct. 19) from Alexander Garden at Charleston, South Carolina, to John Gerar William De Brahm at Charleston contains Garden's critique of De Brahm's treatise on the balance and counterbalance of the atmosphere. A draft of a letter (1776 Oct.?) from De Brahm to Garden with additions and corrections thanks Garden for his "ingenious criticism" of his essay and answers Garden's questions about his essay. De Brahm provides detailed examples and refers to major scientists and their...