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JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



to be exhaled into the air this way." Linnaeus, writing in 1776, says: 

 " Sweet-smelling plants as Wood -roof, when chewed, preserve people from 

 infectious disorders." 



Lastly, it has been found that the bacillus of typhus was killed by 

 air containing the vapour of oil of cinnamon or oil of valerian in forty- 



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AIOCKOYPIAKC 



€ vpecic 



Fig. 113. 



five minutes ; the bacillus of tuberculosis required twenty-three hours for 

 the oil of cinnamon &c. These experiments appear to corroborate the 

 ideae of our medical forefathers, who were wise in their generation, but 

 knew nought of microbes. 



Holy water was often used, apparently as equivalent to a charm. 

 Thus ;is n remedy agninst the bite of a mad dog: "Take the seed of 



