This folder contains bills and receipts for personal and business expenses.

Approximately 10 percent of the documents have been selected. Bills and receipts for routine laboratory expenses, bills and receipts for routine personal expenses, and vouchers for railroad tickets, telegrams, and stamps have not been selected. The vast majority of unselected bills and receipts relate to laboratory expenses. Additional bills and receipts for both laboratory and personal expenses can be found in Invoice Book, Cat. 1161 (not selected).