Scope and Contents Helen Winchester was a scientific artist who worked for the Academy for many years during the first half of this century. She made illustrations for several departments, but her most extended work was for the shell department. This collection contains a single original watercolor plate of Liguus shells which was published as the frontispiece of vol. 2, part 1 of the Academy's Monographs, 1946. Another plate with shell illustrations has been added to the collection, as well as some...