Circular letter from [James C] Philip, Assistant Secretary of the Chemistry Sub-Committee, to chemists involved in paraldehyde preparation Encloses notes on the process of producing beta-eucaine that replaces paraldehyde with acetal. Informs chemists working on the production of paraldehyde that arrangements are being made to switch to acetal production. Will send involved chemists a consignment of acetal so they can test the method for themselves. 6 January 1916