The First Book of Caves, by Elizabeth Hamilton, Vintage 1956, HC DJ
The First Book of Birds by Margaret Williamson, Vintage 1951, HC DJ
The First Book of Astronomy by Vivian Grey, Vintage 1959, 2nd Printing, HC DJ
The First Book of Weather by Rose Wyler, Vintage 1956, HC DJ
The First Book of Magic by Edward Stoddard, Vintage 1953, HC DJ
The First Book of Ships by Jeanne Bendick, Vintage 1959, HC DJ
The First Book of Television by Edward Stoddard, Vintage 1955, HC