GERMINATION OF SEEDS. $$7 



per of brown paper to exclude, the light, containing, 2*30 

 cub. in. of oxigen gas of purity 28 per Cent, were placed 6 

 freshly germinating garden beuus. The scale then indica- 

 ted 3*20 cub. inches. 



In jar B, in the same situation, but the light not ex- and in the 

 eluded, the same number of beans were passed up into 235 llg 

 cub. inches of oxigen gas of like purity. The scale then 

 indicated 3*30 cubic inches. 



In three days it had decreased in jar A, to 2*80 

 In the same time in jar B, to « 2*50 



The air in jar A being now exposed to lime water, 66*30 

 per cent were taken up ; and of that in jar B 55*50 per cent. 

 The residues being afterward submitted to the impregnated 

 sulphate of iron, the quantity absorbed in each^vas propor- 

 tionate to the oxigen gas not consumed, both having about 

 rive per cent, which appeared to be nitrogen. 



Exp. 14. The 16th of April, temp. 50°, press. 28*90. Germinating 



beans in oxigcik, 



In jar A, covered as before, containing 4*60 cub. in. of S as in the dark 

 . . j u it & in the light. 



pure oxigen gas, 10 germinating garden beans were placed. 



After they were in, ihe scale indicated 6*15. In jar B, ex- 

 posed to light, were also put 9 beans, in 5 cub. in. of the 

 Same gas; the scale then indicating 6-85 cub. inches. 



In three hours the scale of jar A indicated 6-06 



of jar B 6-56 



On the 18th of April* .jar A« • • . • 5*90 



jar B.^ 6*30 



One the 21st • • • • jar A had increased to 3 6*10 

 jarBto.... 6*80 



On the 22d. • . • jar A to • • 6*40 



jar B to • 7*20 



On the 23rd > ... jar A to ... • 6*75 



jar B to • 7*70 



On the 24th.. •• jar A to 7*55 



jar B to 8*70 



Q * 615 



