See Durkheim, Le Suicide, p. 101.
We must, of course, see here the results of the disorganization produced by holidays, and the exhaustion produced by the week's labor; but such influences are still the social effects of the cosmic week.
E. Smith, Health and Disease, Chapter III. I may remark that, according to Kemsoes (Deutsche medizinische Wochenschrift, January 20, 1908, and British Medical Journal, January 29, 1898), school-children work best on Monday and Tuesday.