1904] SPALDING—THE CREOSOTE BUSH 129 
TRANSPIRATION OF THE CREOSOTE BUSH. 
No. 1. April 22, 1904. 
ee ae 
10:51 17 26° C. 105 
10:54 19.5 27 121 
10:56 a3 27.5 149 
| 10/58 25.5 28 177 
| 11:00 29.5 28 198 
11:02 25:5 28.5 256 
| 11:04 40.5 29 300 
| 11:06 48 29 355 
11:08 54 29 398 
II:10 60 29 444 
11:12 64 29.5 487 
II:14 67.5 29.5 514 
11:16 70 29.5 532 
11:18 72 29.5 548 
11:20 74 29.5 564 
11:22 75 30 582 
No. 2. April 23, 1904. 
eee Temperature Aunt i 
8:57 21 24.5° C. 62 
9:03 22.5 25.5 69 
9:08 25.5 25.5 72 
9:13 24.5 26 76 
9:18 26.5 26 84 
9-23 29 26 gI 
9:28 32 26.5 104 
9:33 35-5 26.5 116 
9:38 39-5 27 132 
9-43 42.5 27 142 
9:48 46.5 27.5 152 
9:53 47-5 27-5 165 
9:58 49 28 173 
10:03 50 28 178 
10:08 49.5 28.5 183 
The above table gives in milligrams the aggregate amounts of 
watery vapor transpired during the indicated periods by each of 
the plants under observation, and the amounts given off are rep- 
resented graphically by the accompanying curves (fig. 4). The 
