28 ROYAL SOCIETY OF CANADA 



REFERENCES. 



1 Shutt and Spencer. — The Minerai Constituents of the Ottawa River Water, 



1907, Section III. Transactions of the Royal Society of Canada. Third 

 Series— 1908-09. p. 175. 



2 Savage, W. G. — The Bacteriological Examination of Water Supplies London, 



1906, p. 225. 



3 JOBDAN, E. O. — Journal of Experimental Medicine. V. 271. 



4 ESMARCH, V. — Zeit. f. Hygiene XX. p. 340. 



5 Jordan, E. O. — Journal of Hygiene, vol. I, p. 317 — 1901. 



• HORBOCKS, W. H. — Journal of the Royal Army Medical Corps, vol. I, p. 362 — 

 1903. 



