This is a nice counting book, but a bit of a disappointment from Roger Duvoisin from whom we expected more dash and wit than is found here. Simply defined, it is first two ducks, then ten eggs which take a month to hatch into ten ducklings. Each of the processes is counted out and added up- to the tune of Mr. Duvoisin's cagey blue and yellow pictures. Not a patch on Petunia, but it serves a different purpose.