Subject: The Farmer Collection. /1 - photocopy of a list of 121 slides may be related to the lectures of Dr R C Farmer. /2 - 6 enlarged photographs from slides of Gunpowder Processing Lecture by Dr R C Farmer c1920. (see WASC 1588 for 121 small photographs on index cards and original glass slides.)
Description: Granulation of gunpowder. Interior view
