117 pages, unillustrated. This catalogue was one of a series produced to replace that of 1929. The first edition appeared in 1946. In the years between then and the present publication many pictures including some Wilsons were transferred to the Tate Gallery. In 1959 the following five Wilsons were listed at the National Gallery (pp. 105-109):
P89A The Thames near Marble Hill, Twickenham;
P110 Holt Bridge on the River Dee;
P111 The Valley of the Dee with Chester in the Distance;
P131 On Hounslow Heath;
P153 Llyn Cau, Cader Idris.