Pre-computer cryptographers Create Talk0 Category page This page needs content. You can help by adding a sentence or a photo! Add to this page! “ Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual... Charles Wheatstone Pages in category "Pre-computer cryptographers" This category contains only the following page. W Charles Wheatstone Retrieved from "http://psychology.wikia.com/wiki/Category:Pre-computer_cryptographers"