918 



Germinating 

 parley. 



GERMINATION OF SEEBfc 



derable portion of barley previously steeped irf water, and 

 suffered to germinate till the radicles had shot out about 

 one third of an inch. In passing them under the quick- 

 silver it is almost impossible, even with the utmost care, to 

 avoid the introduction of a small portion of atmospheric 

 flir> which closely adheres to them ; but this being trifling, 

 trfti results will not be materially affected by it. The seeds 

 were fUffered to remain in this situation from the 11th of 

 February to the 2d of April, the gas being occasionally 

 taken out aud tried in the following manner. 



In 24hourS"-- 



same time • * 

 48 hours* • • • 

 same time • « 

 same time • < 



3 days « 



Several days 

 several days 

 ad April 



Temp. 48°, Pressure 28-68. 



• 1-60 cub. in. 63-23 absorbed out of 100 

 parts by lime water. 



6-60 

 7'20 

 4-90 

 6-50 

 7*00 

 5*50 

 2-00 

 1*00 



91-00 

 Q8-00 

 98-16 

 98-18 

 98-18 

 98-46 

 99-00 

 99'00 



42*30 whole of the gas produced. 



2d Exp. 



Geminating 

 leans. 



A cubic inch was each time exposed to lime water in 

 Pepys's eudiometer. The remaining gas, generally consist* 

 ing of several cubic inches, was removed into a narrow gra- 

 duated tube, and a small quantity of a solution of caustic 

 potash passed up. The results of both these trials were 

 compared, and they were as nearly as could be analogous. 

 Two smaller jars were also charged with some barley in the 

 same manner: the gas produced was in proportion to the 

 above, and the absorption nearly similar. 



Exp, 2. On the 19th of February, temp. 48°, pressure 

 30-10, eighteen very small beans, freshly germinating, were 

 passed up into aninverted jar full of mercury, holding about 

 5 cubic inches. 



