Offprint

Scope and Content

'On the influence of bacterial multiplication, of dilution, of sedimentation and other factors upon the "natural purification" of running water', part 1. 11. and 1V; Sheridan Delépine, J.H. Johnston. 'Changes observed in the bacterial contents of water flowing at various rates through a system of vessels' part 111, reprinted from the Journal of State Medicine, 1901.