43 * 
S toward, — On Endospermic Respiration in Certain Seeds . 
Exp. 23. Endosperms steeped in aqueous 4 % formaldehyde, 24 hours. 
No. of 
objects. 
WL 
grms. 
Vol. 
c.c. 
Temp. Wer hours 
r° °f 
respiration . 
co t %' 
0.%. 
Mgnis. 
C0 2 . L(J / u z 
5 
1*4181 
4*75 
19 0 4 
0*00 
20*04 
0*00 — ~ 
4 * 5 © 
20° 72 
0*00 
19.98 
0*00 
Pure Endosperms derived from Steeped Seeds. 
Exp. 24. Intact seeds steeped in (1) 6 % CuS 0 4 , io-| hours; (2) water, 37^ hours; 
embryos excised, and their spermoderm and aleurone layer filed off. 
15 2*7649 3*6 21 0 8 2*247 18*44 0*006670 1*44 
3.35 21 0 25 4*544 14*34 0*004016 o*8o 
Exp. 25. Intact seeds steeped in (1) 6% CuS 0 4 , 11 hours; embryos excised, and 
endosperms steeped in (2) water, 13 hours; spermoderm and aleurone layer 
then filed off. 
15 2, 7467 3*80 20 0 8 1*667 18*17 0*005241 0*91 
3*55 21 0 24 5*467 12*46 0*005335 0*72 
Exp. 26. Intact seeds steeped in (1) 6 % CuS 0 4 , 11 hours; embryos excised, and 
endosperms steeped in (2) water, 37 hours. Spermoderm and aleurone layer 
then filed off. 
15 3*8160 3*40 20 0 7-i i*668 17*52 0*003626 0*67 
3*10 2i° 24 6*574 9-388 0*004058 o*6i 
Exp. 27. Intact seeds steeped in (1) o*i % mercuric chloride, \ hour; embryos then 
excised, and spermoderm and aleurone layer filed off. Pure endosperms 
then steeped in (2) water, 18 hours. 
15 1*6948 
3-35 
20° 
8 
o*86 
18-39 
0*003889 0.53 
3-°5 
17 ° 
24 
i *993 
l6*29 
0*002763 o*53 
2-8 
1 7 ° 
324 
3*32 
14*20 
0*003097 o*57 
Exp. 28. Intact seeds steeped in (1) 6 % CuS 0 4 , 6 hours; embryos then excised, 
and spermoderm and aleurone layer filed off. Pure endosperms then steeped 
in (2) water, 14 hours. 
15 1*878 2*7 22 0 8 i*43 18*06 0*004671 0*73 
2*5 2 3 0 24 7*092 9*915 0*007126 0*70 
Exp. 29. Intact seeds steeped in (1) 0*5 % mercuric chloride, \ hour; embryos then 
excised, and spermoderm and aleurone layer filed off. Pure endosperms 
then steeped in (2) water, 19 hours. 
15 2*026 3*2 20° 8 0*00 18*84 °*°0 
2*9 20° 24 0*00 18*26 0*00 
