The long-anticipated third volume of Patriot-Improvers brings to an end the important work of Dr. Whit Bell, who started in 1997 to put together “biographical sketches of members of the American Philosophical Society elected between 1743, when Franklin proposed it, and 1769, when it was established on its present foundation by the union of several earlier institutions” (Patriot-Improvers, Volume One, p. xiii). Work on this third volume was completed by APS Librarian Charles Greifenstein after the death of Dr. Bell in early 2009. The three-volume set is a worthy testament to a much loved member of the APS and a handsome addition to bookshelves.