LETTER FROM М. E. BOURGEAU. 
TABLE (continued). 
Date. 2 feet. 3 feet. Populus. Abies. Atmosphere 
1858. o o o 
April 18 30° 5 30°5 320 430 
19 306 30°5 35°0 42°0 
20 30°7 30°6 36 o 440 
21 30°7 30°6 43°0 
22 30°8 30°7 34 $ 360 
23 308 3077 37 5 4270 
24 308 307 42'0 
25  30'9 30°8 з 5 450 
26 3ro 30°8 44°0 
27 3ro 308 54°0 
28 зго 30°8 47° 8 41:0 
29 312 30'9 54 о . 539 
30 31°2 30°9 . AM 
May 1 313 30°9 sy o . 68*5 
2 31:6 308 . 48°0 
3 32°0 310 7590 . 610 
4 322 zvo In flower. . 56°5 
5 32°3 зго 49°0 . 420 
6 374 3ro 52°0 T 52°0 
7 32°5 31'o 542 540 
8 3277 зго T 50°0 
9 33°0 зго sro 
10 33°2 31'2 370 
H| 335 3r4 478 37°0 
12 33°5 314 420 
13|) 335 314 38° 5 37°0 
14 330 31'5 3877 39°0 
15 33°0 317 eee 470 
16 300 31°7 T . 39°0 
17| 330 317 407 . 362 
18 330 317 40°8 . 383 
19 333 3r8 482 U 49'5 
20 337 3r9 465 e 54°5 
21 340 3r9 49°7 U 490 
22] 350 31'9 49°8 . 520 
23 35'5 320 54°0 * $'О 
24 36°0 32°0 e... mm 62°0 
25 36°2 32°0 62°3 . $8'о 
26 36°7 372 voce А 430 
27] 369 323 50°5 . 47'о 
Е 369 323 soe. . $o'o 
Е 2 А 5 
ons |o. ы. мА 
31 362 328 eee о 
June 1 364 330 wee vee i 5 
2 36°7 33°0 Leaves. see 62°0 
3 3755 332 боёо ee 620 
4| 386 318 582 ee 66:0 
5 397 339 540 М 570 
6 40'0 342 50°5 А 50°5 
7 400 34'9 PPM . 579 
The earliest plants to flower were the following :— 
1858. April 13.—.4lnus Americana, Anemone patens. 
May 3.— Phlox Hoodii, Populus tremuloides. 
May 5.—T wo Salices, Populus balsamifera. 
