20  2 
Dr.  white’s  Experiments 
Flowers  of  LJlmaria,  diminifhed  it  from 
Ten-week  Stocks, 
Mignionette, 
Calendula  vulgaris, 
French  ditto, 
Nafturtium  indicum, 
Carnations, 
Tree  primrofe, 
Antirrhinum, 
Leaves  of  Sage 
Thyme, 
Mint  (common)  , 
Ditto  (pepper)  . 
Parlley, 
63  to  52 
63  to  53 
60  to  54 
60  to  54 
60  to  55 
60  to  55 
60  to  56 
60  to  56 
60  to  57 
61  to  55 
6 1 to  5 6 
61  to  57 
61  to  5 7 
61  to  57 
It  is  evident  from  thefe  experiments,  that  vegetables, 
when  frelh  and  vigorous,  exhale  a noxious  matter  in 
eonfiderable  quantity,  which  quickly  renders  common 
air  noxious.  This  is  moll  remarkable  in  the  flowers, 
next  in  the  leaves,  and  this  in  proportion  to  their  firm* 
nets  and  texture. 
exp.  xiii.  In  the  laft  experiments  we  have  faid,  that 
the  air  only  flood  in  contact  with  the  vegetables  half  an 
hour;  let  us  fee  here  what  effecfl  a longer  time  of  Hand- 
ing together  may  have,  viz.  1 6 hours. 
Flowers 
