TY - JOUR T1 - ORganization section Y1 - 1939/03/04 N1 - 10.1001/jama.1939.02800090057017 JO - Journal of the American Medical Association SP - 847 EP - 858 VL - 112 IS - 9 N2 - AMERICAN MEDICAL ASSOCIATION STUDY OF MEDICAL CARE  REPORT OF MIDDLESEX SOUTH DISTRICT (MASS.) MEDICAL SOCIETY, BOSTON  The following report is based on the data recorded on the summary sheet of the Middlesex South District Medical Society. As indicated in the title, the Middlesex South District is not a county but a district society and, as stated in the summary sheet, no estimates of the population in this district can be made. The largest political unit included in this district is the city of Cambridge—a part of the metropolitan district of Boston. Some idea as to the population and economic status of the people in this district may be obtained from the following facts: Harvard University is located in Cambridge, and much of the surrounding area is urban residential districts; there are 169 industrial concerns in Cambridge, of which 143 are manufacturing plants which employ 20,753 workers. In order to SN - 0002-9955 M3 - doi: 10.1001/jama.1939.02800090057017 UR - http://dx.doi.org/10.1001/jama.1939.02800090057017 ER -