LETTER FROM M. E. BOURGEAU. 
TABLE (continued). 
Date. 2 feet. 3 feet. Populus. Abies. Atmosphere. 
1858. o o o 
Feb, 20 M a .. — 2'0 — $30 
21 ee enn ee e — 75 
22 15°0 20'0 + 4o " 5:0 n 
23 eA wees eA 19°5 "o 
24 171 20'6 +165 308 
25 353 
26 Thermometers frozen 303 
27 ° 6'6 
28 +75 o'o T 
Mar. 1 19:8 230 7o vies ro 
2 18:8 230 e 6*3 го 
3 18°0 22°6 12°5 ZI 172 
4 18:8 22'0 T" 1I'O 22°0 
5 19'0 222 21'5 e 2672 
6 19:8 22/2 e 26:0 332 
7 207 222 28:6 29'5 325 
8 230 23°5 зго ZEE 3r5 
9 24'0 245 30°0 „++, 16°0 
Io) .... -— el 242 T» 
11 248 248 28°0 28'0 28:2 
12 25'0 252 eA 26°0 387 
13 25'8 258 29'5 m 30°0 
14 26:0 26°0 28°0 t 3ro 
15 26°5 26°5 32°2 e 385 
16 26:8 26:8 320 $20 vee 
17 27'0 27'0 320 ese 28°0 
18 2777 272 jro 26:5 зго 
19 278 278 3ro o 433 
20 28'0 28'o 308 5 328 
21 28'0 28°0 26°0 M 21'2 
22 28:0 28°0 27°2 © o 31'9 
23 28:0 28°3 312 в 5 357 
24 28:5 28:6 31:8 z 2 4270 
25 288 28'9 3r8 $5 378 
26 28:8 29°0 32°0 с 2 322 
27| 290 290 320 c 382 
28 29:0 29:0 3270 g E 447 
29] — 29'4 29°0 32°5 28 abi 
39) 295 29°0 33°0 58 403 
„30 298 296 350 Sad 390 
April ır 29°8 29°6 32°0 ees n 
2 29:8 29'7 325 Sey, ve 
3 29'$ 29'7 3270 BAS $6 
4 — 298 297 32'0 S35 aS: 
5 30°0 29°8 317 3 E2 2 5 
6 зоо 2958 330 ig? 4де 
7 30°0 30°0 338 S E 394 
8 30°0 30'0 32°5 Z Е 3 2 
9 зоо 30'0 335 "45 42. 
10 30°0 30°0 34°5 5 є 4 3 
11 30°0 30°0 330 E: мю 2. | 
12) — 3072 30°0 34°5 68 494 
13 30°2 30'0 34°0 ЕЕ di 
14 30°2 30°0 55. 25 to 
I5 30°2 30°0 32'0 è 264 
16 30°3 30°2 320 £ 28°3 
17 30'3 302 so 
