Dear Luisa, Maybe Henry Lowood can tell you if they have anything in their Apple Collection in the Stanford Archives? Best, David +++++++++++++++ David C. Brock dcb@dcbrock.net Senior Research Fellow Chemical Heritage Foundation www.chemheritage.org Principal, D.C. Brock Consulting www.dcbrock.net 40 Russell Street, Greenfield, MA 01301 Mobile: 413-522-3578 Fax: 866-549-8597 Skype: dcbrock Twitter: @dcbrock