The influence of ultra-violet rays on industrial output / by A. Lisle Punch and Russell Wilkinson with the collaboration of R. StC. Brooke and C.S. Myers.

  • Punch, A. Lisle.
Date:
1928?]
Catalogue details

Licence: In copyright

Credit: The influence of ultra-violet rays on industrial output / by A. Lisle Punch and Russell Wilkinson with the collaboration of R. StC. Brooke and C.S. Myers. Source: Wellcome Collection.

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    J>S Reprinted from The Lancet, June 2nd, 1928, p. 1120. THE INFLUENCE OF ULTBA-VIOLET BAYS ON INDUSTBIAL OUTPUT. By A. LISLE PUNCH, M.B., M.B.C.P. Lond., AND BUSSELL WILKINSON, M.V.O., M.B.C.S. Eng. With the collaboration of B. StC. BBOOKE, M.A., AND C. S. MYEBS, C.B.E., M.D., F.B.S. During October, November, and December, 1925, an investigation was conducted into the influence of ultra-violet rays on the output of girls engaged in the manufacture of chocolates in the works of Messrs. J. Lyons and Co., Ltd., at Greenford, Middlesex. The treatment was applied by Dr. Lisle Punch and Dr. Bussell W7ilkinson. The data of output were obtained by Mr. B. StC. Brooke, psychologist to the firm. The general planning and supervision of the investigation and the preparation of most of the following report were the work of Dr. C. S. Myers, aided by a grant to the National Institute of Industrial Psychology from the Laura Spclman Bockefeller Memorial. The investigators are indebted to Mr. Julius Salmon, one of the directors of the firm, for the interest which he showed in the experiment and for the facilities which he gave for its smooth conduct, and to the British Hanovia Company for the loan of the necessary apparatus. Twelve women employees of the firm, engaged in the manufacture of chocolates, volunteered for the experiment. This was divided into three observation periods : (a) a “ pre-treatment ” period of two weeks, (b) a “ treatment ” period of four weeks, (c) a “ post-treatment ” period of two weeks. Each girl was engaged throughout the entire experiment in making one and the same kind of chocolate, but the work of each differed in detail from that of her colleagues. The data of the output of each of the 12 girls were collected hourly throughout each of the three periods of observation. Three of the girls served as a control group. They believed that they were being given ultra¬ violet ray treatment, whereas in fact the ultra-violet rays were screened from them. Of the other nine girls one fell ill and was away from work for 17 days after three days’ data had been collected from her during the pre-treatment period. Her records have therefore been omitted.