educated. Such employment he can get at home." Experimentation Both academic research and the final report of the Truth and Reconciliation Committee relay evidence that students were included in several scientific research experiments without their knowledge, their consent or the consent of their parents. These experiments include nutrition experiments which involved intentional malnourishment of children, vaccine trials for the BCG vaccine, as well as studies on extrasensory perception, vitamin D diet supplements, amebicides, isoniazid, hemoglobin, bedwetting, and dermatoglyphics. Mortality rates Residential school deaths were common and have been linked to poorly constructed and maintained facilities. The actual number of deaths remains unknown due to inconsistent reporting by school officials and the destruction of medical and administrative records in compliance with retention and disposition policies for government records. Research by the TRC revealed that at least 3,201 students had died, mostly from disease. TRC chair Justice Murray Sinclair has suggested that the number of deaths may exceed 6,000. The vast majority of deaths occurred before the 1950s. The 1906 Annual Report of the Department of Indian Affairs, submitted by chief medical officer Peter Bryce, highlighted that the "Indian population of Canada has a mortality rate of more than double that of the whole population, and in some provinces more than three times". Among the list of causes he noted the infectious disease of tuberculosis and the role residential schools played in spreading the disease by way of poor ventilation and medical screening. In 1907, Bryce reported on the conditions of Manitoba and North-West residential schools: "we have created a situation so dangerous to health that I was often surprised that the results were not even worse than they have been shown statistically to be." In 1909, Bryce reported that, between 1894 and 1908, mortality rates at some residential schools in western Canada ranged from 30 to 60 per cent over five years (that is, five years after entry, 30 to 60 per cent of students had died, or 6 to 12 per cent per annum). These statistics did not become public until 1922, when Bryce, who was no longer working for the government, published The Story of a National Crime: Being a Record of the Health Conditions of the Indians of Canada from 1904 to 1921. In particular, he alleged that the high mortality rates could have been avoided if healthy children had not been exposed to children with tuberculosis. At