378 BOTANICAL GAZETTE [MAY 
TABLE IV 
No Time Hours Air per hour j|mg. CO; per hour Weather 
I 4:00 P.M.- 8:30 A.M 16.50 I.70 0.35 A 
2 8:30 A.M.— 5:30 P.M 133 I.34 A 
3 5:30 P.M.— 8:45 A.M. 15.25 t: 2.74 A 
4 8:45 A.M.- 5:30 P.M. L437 3.94 A 
5 5:30 P.M.- Q:00A.M.| 15.50 fay 4.64 A 
6 | Q:00A.M.— 5:15 P.M. 8.25 T2465 5.80 A 
7) 5:15 P.M.— 9:30A.M 16.25 L.05 Pei gist A 
8 | 9:30A.M.— 5:45 P.M 8 1.21 5.99 A 
9 | 5:45 P-M— 8:00AM 14.25 1.33 7.41 A 
to | 8:00 A.M.- 6:15 P.M 10. 25 r.17 6.91 A 
Ir | 6:15 P.M.— 8:30A.M 14.25 1.26 6.60 A 
12 | 8:30A.M.— 5:30 P.M fore) 1.12 6.25 B 
ee 5:30 P.M. 8:45 A.M ¥§.25 1.18 6.14 O 
14 | 8:45 A.M.— 6:30 P.M 9.75 £13 6.18 O 
15 | 6:30 P.M.— 8:30A.M, 14.00 1.28 6.12 B 
16 | 8:30A.M.— 6:15 P.M 5 1.13 6.35 B 
17 | 6:15 P.M— 8:30A.M 14.25 1.19 6.23 B-C 
18 | 8:30A.M.- 5:00 P.M. 1.06 6.18 Cc 
Ig | 5:00 P.M— 8:15 A.M 15.25 £23% 5.74 B-A 
20 | 8:15 A.M 5:15 P.M 00 1.00 4.82 2 
A 
