Unknown2019-09-242019-09-241944-09-15RPB-108-03-008http://hdl.handle.net/20.500.11867/18170Single sheet 8.5 x 11 inch letterhead. Typed. Annotated in pencil."Due to the recent wave of Hop Kiln fires I wish to urge that extreme caution be exercised by all kiln operators. After an extensive investigation of the five fires which have just occurred in this district the theory has been advanced that static electricity is responsible for several of the fires."Government documents