The history and adventures of an atom. In two volumes. ...
Smollett, T.(Tobias),1721-1771.
London : printed for Robinson and Roberts,
MDCCXLIX [1769]
A variant has the titlepage correctly dated.
Anonymous. By Tobias George Smollett.
ESTC
Also reproduced on microfilm. Woodbridge, CT: Research Publications, Inc., 1983. The Eighteenth Century ; reel 206, no. 3.