 Between 1935 and 1939 the monthly total of patients at the lock hospital, taking into account admissions, discharges, births and deaths, fluctuated between 186 and 276, while the death rate ranged between zero to six patients a month during this period.Causes of death recorded included tuberculosis, chronic VD, pneumonia, influenza and heart disease.In 1936 vegetables and fruit trees were being grown on the island.