KO. I AIR AND TUBERCULOSIS — HINSDALE II 



of Chicago/ This investigation was carried on at the suggestion of 

 and under a grant from the Journal of the American Medical Asso- 

 ciation. Their experiments were carried out (i) to determine the 

 germicidal action of ozone on pure cultures under the conditions 

 commonly used in testing disinfectants, and (2) to determine the 

 effect of ozone on the ordinary air bacteria. They found, after a 

 long series of experiments detailed in full in their paper, that no 

 surely germicidal action on certain species of bacteria could be 

 demonstrated by the usual disinfection tests with amounts of gaseous 

 ozone ranging from 3 to 4.6 parts per million. The alleged effect of 

 ozone on the ordinary air bacteria, if it occurs at all, is slight and 

 irregular even when amounts of ozone far beyond the limit of phy- 

 siologic tolerance are employed." The toxication of strong concen- 

 trations of ozone through injury to the lungs was marked. Even 

 in moderate amounts it produced an irritation of the sensory nerve 

 endings of the throat and a headache due to irritation, corrosion 

 and consequent hyperemia of the frontal sinuses. Consequently the 

 use of this poisonous gas as a therapeutic agent is either valueless 

 or injurious. 



USE OF FOREST RESERVATIONS FOR SANATORIA 



We cannot leave the subjects of forests and forest air without 

 strongly advocating the use of forests and especially State and 

 Governmental forest reserves for institutions, hospitals, and cfmps 

 for the tuberculous. The State of Pennsylvania has large forestry 

 reservations, amounting at present to 1,000 square miles in 23 coun- 

 ties, and maintains a State School of Forestry, where young men are 

 in training for its forest service. Acting under liberal forest laws, 

 Dr. J. T. Rothrock, then State Forestry Commissioner, in 1903, an- 

 nounced that citizens of Pennsylvania are entitled to the privilege 

 of using the forestry reservation of the state under proper restric- 

 tions as a residence while regaining health and recommended it espe- 

 cially to those in need of fresh air treatment of tuberculosis. In 

 the spring of that year Dr. Rothrock, with State aid, started the 

 construction of a few small cabins for the use of such patients and 

 called it the South Mountain Camp Sanatorium.' This is situated 



'Ozone: Its Bactericidal Physiologic and Deodorizing Action. (Journ. 

 Amer. Med. Ass., Sept. 27, 1913, Vol. 61, pp. 1007-1012). 



' This is corroborated by the recent article by Konrich, Zur Verwendung 

 der Ozone in der Lliftung. (Zeitschr. Hyg., 1913, Vol. IZ, 443-) 



=* Charities and Commonwealth, Dec. i, 1906. Journ. Amer. Med. Ass., 1907. 

 Journal of the Outdoor Life, Jan., 1907, and Feb., 1908. 



