The effect of electrolytes and inorganic colloids on the mechanical fitting of enamels to plastic clay bodies
A 1914 University of Illinois ceramic engineering thesis by Frank Allen Kirkpatrick and Howard Clifton Arnold, testing how electrolytes and colloids alter the fit of enamel glazes on clay bodies, written for engineers and industrial potters. The plates are hand-lettered viscosity curves drawn in ink on pale green graph paper, offering grid textures, spiking line profiles, and plain draughtsman's captions.
