———

1806.

The works of Dr. Franklin have been often partially collected, never before brought together in one uniform publication.

The first collection was made by Mr. Peter Collinson in the year 1751. It consisted of letters, communicated by the author to the editor, on one subject, electricity, and formed a pamphlet only, of which the price was half-a-crown. It was enlarged in 1752, by a second communication on the same subject, and in 1754, by a third, till, in 1766, by the addition of letters and papers on other philosophical subjects, it amounted to a quarto volume of 500 pages.

Ten years after, in 1779, another collection was made, by a different editor, in one volume, printed both in quarto and octavo, of papers not contained in the preceding collection, under the title of Political, Miscellaneous, and Philosophical Pieces.

In 1787, a third collection appeared in a thin octavo volume, entitled Philosophical and Miscellaneous Papers.