1 2 S Analyjis of the Air. 



The like quantity of frefli Lime and 

 V/ater abforbed in 3 days 10 cubick inches 

 of air. 



Two cubick inches of Lime, and an equal 

 quantity of Sal Ammoniac ,- abforbed 115 cu- 

 bick inches: The fumes of this mixture are 

 therefore doubtlefs very fuffocating. 



A quart of unflacked Lime, left for 44 

 days, to flacken gradually by it-felf, without 

 any mixture, abforbed no air. 



March 3d, a cubick inch of powdered 

 Belemnitis, taken from a Chalk pit, and an 

 equal quantity of oil of Vitriol, generated 

 in five minutes 35 cubick inches of air. 

 March 5th, it had generated 70 more. 

 March 6th, it being a hard froit, it relbrb- 

 ed 12 cubick inches ; io it generated in all 

 105 inches, r*r,d refoibed 12. 



powdered Belemnitis and Limon juice ge- 

 nerated plenty of air too; as did alfo the 

 Star-flow, Laps Judaicus, and Selantis 

 with oil of Vitriol, 



Eyperiment CI. 



Gravel, fchat is well burnt, Wood-aJJ:es y 

 decrepitated Salt, and Cdcoihar of Vitriol, 

 placed itveraily under the inverted glafs 

 zzaa, (Fig. 35.) increakd in weight by 



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