Answers are grounded in this paper and cite their sources.
A recording microphotometer, which gives an inked record, has been constructed. It utilizes a photoelectric cell as the light sensitive device. The recording is done with a Leeds and Northrup Speedomax recorder.
No takes yet. Share an insight, caveat, or question.
Knorr et al. (1937) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: