LETTER FROM M. E. BOURGEAU. 9 
May 6.—Two other Salices, Shepherdia argentea aud Hippophaé, Lathyrus ?, 
Equisetum, Tussilago, Negundo Fraxinus, &c. 
May 7.—Viola (two species), Potentilla, Ranunculus, Androsace, Astragalus. 
May 8.—Fragaria Canadensis, two Carices, and Poa. 
May 10.—Salix, Lithospermum, Astragalus. 
Maximum and Minimum of every Twenty-four Hours (I began 
by the minimum) :— 
Date. | Min. Max. Date. Min. Max. Date. | Min. Max. 
1858. o o 1858. o o 1858. o o 
Feb. 1| —21°5 24'0 ||Маг.15] 3ro 399 |Apr27| 552 750 
2| —30'4 | — 9o 16] 3r3 358 28| 250 $40 
3| —25'2 o'o 17|) 258 31'5 29| 272 64°5 
4 9°7 32°0 | 18| 155 339 30 зго 65°0 
5] 140 32°2 | 19] 12:0 4r2 | May 1| 422 69°0 
6| — 91 1277 | 20| 144 336 2| 450 75'5 
7| 7230 |— 68 | 21 41 275 3 37? 7ro 
8| —2477 зо | 22| 237 40°0 4| 40°! 732 
9| —28°3 | — 100 23; 3ro 40'0 5| 300 9277 
10 —33°3 | — 47 24| 25 5| 415 6, 335 | боо 
11| —270 |— 78 25) 2r6 398 7| 388 6177 
12| —36°0 | — 197 26| 225 354 8| озго 63:3 
13| —37°0 | —2470 27| 2180 412 9| 330 60°8 
14| —42'1 | —23°6 28} 15:8 | 495 10 330 | 598 
15| —54'0 | —2472 29| 324 | 450 I|] 145| 433 
16| —32°3 | — 977 30] 307 4358 12] 2472 45°5 
17| —13°2 | — r6 31 290 45°9 13] 200 32°0 
18| —2rs | + 12 | Арг. 1 256 49°0 14] 138 42°0 
19| —24'4 $38 2| 253 346 15] 27'0 58°7 
20] —26°0 2'0 3} 180| 269 16] 265] 445 
21 —5ro 8o 4| 160 379 17] 28:6 48:0 
22| — 15'0 14'0 56|. 13:0 327 18| 19'o 49°0 
23| + 36 392 6j, 22'0 470 19] 30'5 61:4 
24 72 328 7| 220 48:8 20| 412 70:3 
25| 184 | 446 8] 220 372 21] 340 72:2 
26| 190 39°0 9| 18:6 487 22| 390| 672 
27| — yo 18:8 11| 267 53° 23| 400 68-4. 
28| —16°$ то'О 12; 270, 678 24) 50?3] 7oo 
Mar. 1| — 18-0 24. 13| 24'5| 500 25| 353 | 69o 
2| —23°2 го 14) 147 28'4 26| 38°0 49'4 
3| 33 172 15 go | 480 27| 45'0 547 
4 о 2077 16 g'o 48°0 28 38'9 540 
5 30 24°0 17| 19:8 42°0 29| 337 48:8 
6| r5's 39'1 18) 342 6ro 30 319 5ro 
7| 12:6 358 19| 29'0 63°0 31 276 562 
8| 237 388 20| 23:6 52'5 | Јапе2] 44'0| 72°0 
9| 229| 467 21) 180} 483 3| 49 70'o 
10] 137 30°5 22| 20'0 442 4 468 778 
11| 156| 377 23| 202 | 455 s| 440 | 633 
12) 212 392 24| 265 55'0 6| 31°9 56°0 
13| 117 438 25, 28'0 $277 
ІФ 12'0 44°0 26 361 7o'o 
