225 GERMINATION OF SEEDS. 



These pease were then passed up a jar filled with mer* 

 airy, and in throe days produced 2 cubic inches of gas, 98 

 per cent of which were absorbed by the same test. Another 

 portion, formed afterward, gave a similar result. 



Barley just be- Exp. 11. The 19th of March, temp. 48% press. '2972. 



milTat^inoxi" ^ ome fresnl y germinating barley, weighing 1127 grains, 



gen gas. radicles just bursting forth, were placed in a gauze bag;, as 



in Exp. S, in 24 cubic inches of oxigen gas of 99 per cent 



purity. When the barley was in, the scale Indicated 27*10 



cubic inches. In 24 hours it had diminished to 26*70, and 



in 12 hours more to 26*15. In transferring some of the gas 



for trial, an accident prevented the farther pursuit of the 



experiment ; but that being exposed to limewater, 34*50 per 



cent only disappeared. * 



Germinating Exp. 12. The 24th of M-arch, temp. 54% p. 29*34. 



pease in oxi- . . . . , . , _„ 



gengas in th« kome germinating pease, weighing 114*70 grs., were 



dark, carefully passed up an inverted jar A, covered with brown 



paper, containing 3*75 cub. in. of oxigen gas quite pure (an 



inch of it being previously exposed to the test, only a very 



small bubble remained, hardly appreciable.) When the 



pease were in, the graduated scale indicated 4*10 cub. in. 



In two days in jar A, it had decreased to 3*90 

 In three days more it had increased to • • 4*20 

 And the next day to 4*60 



The gas being now exposed to lime water, 94 per cent 

 were absorbed ; and the pease, on being placed in the ba- 

 lance, had lost some grains in weight as before. 

 a*nd in the The same weight of pease was placed in jar B exposed to 



1,fht# light in 377 cub. in. of oxigen gas. After the pease were 



in, it stood at 41*10 cub. in. 



In two days jar B stood at • • • 3'92 



III three days it was increased to 4*20 



And next day to 4*60 



Being now tried with lime water, 93 per cent were absorb- 

 ed ; and the pease, being weighed, had lost two grains only. 



Germinating Exp. 13. The 13th of April, temp. 46°, press. 28*90. 

 gengas' 1 irTthe * n J ar ^' * nve rted in mercury, and covered with a wrap- 

 dark, per 



