Jan. 13, 1923 
New Respirometer for Seeds 
113 
Table II shows the calculation of temperature coefficients from an 
experiment with single lots of dormant York Imperial and Newtown 
Pippin apple seeds in successive periods at 13 0 and 30° C. 
Table II .—Calculations of temperature coefficients from data for successive periods at 
13° and 30° C. 
York 
Imperial. 
Newtown 
Pippin. 
Formula (5) 
Log 2 io=(Log K 2 —Log Ki) (jff) 
K 2 for oxygen consumption (units). 
I - 1 2 3 4 5 
•65 
.09691 
9.81291 
i -35 
.62 
• 13033 
9.79239 
K l for oxygen consumption (units). 
Log k 2 .'. 
Log k x . 
Difference. 
.28400 
9-45332 
9-76955 
•33794 
9.52884 
9-76955 
Log difference. 
6 Va-V 8 V17/ . 
Log (log Q\a) . 
9.22287 
.16706 
1.47 
1.47 
•59 
• 16732 
9.77085 
9.29839 
.19879 
1.58 
1-51 
•59 
.17898 
9.77085 
Log Q 10 . 
Qio for oxygen consumption. 
K 2 for C 0 2 production (units). 
' K x for C 0 2 production (units). 
Log »2..... 
Log k x . 
Difference. 
•39647 
9.59821 
9-76955 
.40813 
9.61080 
9-76955 
Log difference. 
Log (r^y) =Log (—} . 
6 V 2 -*i/ 5 * * \I 7 / 
Log (Log O 10 ). 
9.36776 
.23322 
1.71 
9-38035 
.24008 
1.74 
Log Q l0 . 
Qio for C 0 2 production. 
LITERATURE CITED 
(1) Aubert, Ephrem. 
1892. RECHERCHES SUR LA TURGESCENCE ET LA TRANSPIRATION DES PLANTES 
GRASSES. In Ann. Sci. Nat. Bot., ser. 7, t. 6, no. 1, p. 1-90, 9 fig. 
Reprinted with slight change in title as Pt. I of his Th£se, Paris. 1892. 
(2) Bonnier, Gaston, and Mangin, Louis. 
1884. RECHERCHES SUR LA RESPIRATION ET LA TRANSPIRATION DES CHAM¬ 
PIGNONS. In Ann. Sci. Nat. Bot., ser. 6, t. 17, p. 210-305, pi. 17-20. 
Bibliographical footnotes. 
(3) Brown, Horace T., and Escombe, F. 
1905. researches on some of the physiological processes of green 
leaves, with special reference to the interchange of energy 
between THE LEAF and its surroundings. In Proc. Roy. Soc. 
[London] ser. B. v. 76, no. 507, p. 20-111, 1 fie:. 
(4) BunzEL, Herbert H. * 
1914. a simplified and inexpensive oxidase apparatus. In Jour. Biol. 
Chetn., v. 17, no. 3, p. 409-411, 1 fig. 
(5) Godlewski, Emil. 
1882. BEITRAGE ZUR kenntniss DER pflanzEnathmung. In Jahrb. Wiss Bot. 
[Pringsheim], Bd. 13, Heft. 3, p. 391-543, 1 fig. 
