Document 93y02pNyMEyJKkZJpEm0Ykod5

January 6, 19^3 Miss Margaret S. Ferry, Editor, Journal of Industrial Hygiene and Toxicology, 55 Shattuck Street, Boston, Mss* > Dear Miss Perrys In accordance with your request of December 31, we are for warding a copy of the legends for figures 1, 2, and 4, of Dr. Dreessen's paper #5. e are retaining a copy in case you wish us to sake the additions to the galley proof. Sincerely yours. RAK ef Enc. Robert' A"iteho'e, M", D. Kr 0015247 COPY. FEDERAL SECURITY AGENCY- U. S. PUBLIC HEALTH SERVICE NATIONAL INSTITUTE OP HEALTH BETHESBA, MARYLAND - January 5, 19A3 AIRMAIL Dr . R . A . Kehoe, Kettering Laboratory of Applied Physiology, University of Cincinnati College of Medicine, Cincinnati, Ohio. Dear Dr. Kehoe: This will acknowledge your telegram of this date requesting the legends for figures 1, 2, and. 4 Qf my paper entitled "A Study of the Health of Workers Exposed, to Lead in the Manu facture of Storage Batteries1'. They are as follows: Figure 1. - Flow sheet of operations in storage battery manu facture . Figure 2. - Distribution of blood lead and urinary lead values (dithizone method) in relation to atmospheric lead concentration. The percentage of workers whose blood (or urinary) lead values fell within speci fied ranges is shown, by the heights of vertical bars. Values for lead-affected workers are shown by solid black bars; values'for nonaffected workers are represented by hatched bars . Figure t. - A comparison of the average systolic and diastolic blood pressures of storage-battery workers of speci fied age with the corresponding values for 6,667 male industrial workers employed.in the pottery, post-office, glass, gas., foundry, steel, chemical, cement, and cigar industries (18). By direction. Chief of Division. Sincerely yours, 0015248 W. C. Dreessen, Durgeon Chief, Medical Unit N20330.01