Tables from a 1928 study that was started to test the length of time needed to gain efficiency in mica splitting. The weekly average output of 34 experienced operators was used as the standard. Fifty-two inexperienced operators were studied. ...
Two page form/questionnaire used for personal data collection and observation. A narrative case history for each of the 5 mica splitting operators follows. The case histories give marital status and age. There is a discussion of living...