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316 ‘Experiments and Obfervations 
into a pint bottle; an ounce-phial half filled with 
lime water, was fufpended by a thread in the veffel, 
fo as not to touch the liquor; the bottle was then 
clofely {topped with a clean cork, ‘The lime was 
precipitated from the water in the phial at the end of ° 
forty-eight hours. Hence we are authorized to in- 
fer, that Carbonic Acid Gas had been generated in 
the bottle during the courfe of the experiment. 
Experiment VI. Being by this time convinced, 
that Carbonic Acid is produced by the vegetation 
of feeds; and believing with Mr. Lavoisier, that 
the acid in queftion confifts of Carbone united to 
Oxgyene, I endeavoured, in the next place, to dif- 
‘cover whether the atmofphere or the vegetable oxyds 
of the materials ufed in my experiment, fupplied the 
acidifying principle. For this purpofe I placed fe- 
vendrams twenty-three grains of fteeped peasina new 
phial, the mouth of which I covered with a piece 
of clean window glafs, which was intended to con- 
denfe the vapour, fhould any afcend into the neck. 
The bottle, thus prepared, was fcreened from the 
action of the light, fo as not to prevent the free 
accefs of the air to its contents. At the end of one 
hundred and twenty hours, the peas were found to 
be vegetating freely, many of them having fprouts 
two inches long. The neck of the phial, and the 
glafs that covered it, were free from moifture. The 
whole was then carefully weighed; and, the neceffary 
deductions being made for the bottle and glafs, the 
peas were neither more nor lefs than feven drams 
twenty- 
