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not difcover one which did not yield 

 poiibnous air, though in a fmall 

 quantity, by day and by night, and 

 which had not the power of render- 

 ing quite unfit for refpiration a very 

 confiderable body of common air. 

 They even feem not to lofe in the 

 leaft their deleterious influence in 

 the fun ; fo that I cannot but think 

 that it is unfafe to keep in a clofe 

 room a large quantity of any 

 flowers, even fuch as have the moil 

 delightful fmell. I am, however, 

 very far from thinking that there 

 is any danger to apprehend from 

 fuch nofegays as are commonly kept 

 in a room, either for ornament or 

 perfume. The malignant influence 

 which could be expected from fuch 

 a fmall quantity of flowers is in- 

 tirely difiipated in the mafs of the 

 furrounding air ; but the excefs 



mult 



