The recent appearance of the "sperrschicht" type of photoelectric cell has made possible the improvement of several old instruments and the development of new ones. These have included colorimeters, nephelometers, titration meters, pH meters, counters, illuminometers, spectrophotometers, reflection meters and area meters. Much of the work has been published since 1931 and is distributed widely in journals in the special fields of botany, chemistry, physics, engineering, medicine, etc. The authors have compiled the following bibliography with the hope of bringing together these recent developments in a form usable to plant physiologists and others interested in colorimetric, turbidimetric and various light measurements.
Proceedings of the Iowa Academy of Science
©1935 Iowa Academy of Science, Inc.
Turrell, F. M. and Waldbauer, Louis
"A Bibliography on the Use of Photoelectric Cells in Plant Investigations,"
Proceedings of the Iowa Academy of Science, 42(1), 67-70.
Available at: https://scholarworks.uni.edu/pias/vol42/iss1/12