248 BAROMETRIC OBSERVATIONS. 
OBSERVATIONS—Continued. 
o a a = = 
: S 28974 
8 E & |= B و ا‎ Ei Wind. 
Rural Sas [9:3 $5 
Station. Date. Hour. 8 £ | au - HSE) AS Clouds. 
= $ |? B | 5 8 ۸ | و یه‎ g 
is 3 ° 3 WG | کے کے‎ E 
3 = rg EE 337 |3 3 + E 
Š E | » | اه‎ ER| B 8 
z 一 < < E o 一 = 
1853. 
Btation IIL Dec. 13 | 3.25 p. mif 783 [24.808 | 53 |...... 24. 787 
Biv ( عو‎ Dec. 14 | Sunrise....| 783 6 30. 3 24. 556 
Bivouac 2, mouth | Dec. 15 | Sunrise....| 783 |25.085 | 22 |------ 25. 038 Cirrus, 3 
of Caiion Diablo. 
Statio: do 12. 30 p.m.) 783 (24.754 34.5 24. 0 
1.30 p.m.| 783 9 (> AAA . 788 Nim. & cum., 9 
Biyouac 3 do Sunset....| 783 [24.386 | 34.4 24. 387 
Delius. Dec. 16 | Sunrise....| 783 | .480 | 13.7 
81... 1-289 4, 497 26 9 . 441 
Station 3, top of do 783: 123,858: | 45 ||... 23. 754 
volcanic c peak. 
Station 4—valley.|....do....| 10.30 a. m.| 783 (24.320 | 37.5 24. 230 CRT DEEL 
Bivouss سے کے ل4‎ A do....| 1.50 p. m-| 783 (23.586 | 40 SE ID asses N. امے‎ A Cir.-cum.，2.-- 
bic. T89.| 4 5 Creos ی‎ 
deer NC Dec. -17 | Sunrise....| 783.) ۰۰ 691 139. Gi . 588 
Station 1 | do | 10.10 a. m-| 783 23. 389 44. rosita 23. 287 
Station B | do | lla. m...| 783 |23.222 44.2. ss. 23. 108 
Station 0 |--..do 783 [23.330 | 48.3|...... 23. 146 
Statio Ma 783 22.486 | 55.2...... 22. 452 
Biv. 5, i SSp. do 783 |22.920 54. 7 22. 881 
Sunset....| 783 900 35. B ses .894 
REC en Loue Dec. 18 | Su Sa 1884. 883 991.9... .. e 795 Cirro-strat., 2. 
Station 4 d 8 p.m... 788 [23.180 | 47.5 23. 159 
Bivouac 6 d Sunset....| 783 [23.107 | 39.7 28. 100 lon sox: i و وت‎ 8 
١8س‎ Dec. 19 | Sunrise....| 783 . 092 £0: دس6 ال‎ «OD 90 BE... 1 Stratus, 9....- 
Bivouac 7, Cosnino do Sunset....| 783 23.926 32.5 23. 942 Cima T 1919:7277 
caves. 
Medie ee | Dec. 20 | Sunrise...-| - 783 . 915 31.85 4s 896] EE W.S.W.| 2 Cirro-strat., 2. 
Camp 87 do Sunset....| 783 |25.33 45. 5 25. 396 0 -cum 
Camp 91, Leroux's| Dec. 28 | 9 ۵ m....| 783 (23.062 | 46.8 22. 964 و‎ Ju... 
Top of Hill D do .11.50a. mi 783 ۱22. 141 | 48.7 22. 051 
| 1.30p.m..| 783 | .113| 44.7|...... ۱ à 
Base of Hill D do 2. 30 p. m. 783 |22.846 | 56.7|.....- 22.814 
Leroux's Spring- -| --- -do----| 3 p. m....| 783 |22. 964 22. 952 
a ا‎ | Dec. 30 | 9.35 78 98 32.5|------ 903 |.....2| W... EX 
Bivouac 11 | do Sunset....| 783 [22.977 | 32.6, 22. 986 0 
éier wl Re Dec. 31 | Sunrise ...| 783 . 938 237200 ء افو‎ 917 
9.30 a. m.| 783 ۱2۵۰ 6 51.05...-- «983. Loose MD 2 Cirrus, 1.5. 
Station 2 | do | ۲ , 8۶ 28 118 |. 49:8 uc 22.977 | 
? The a at the FU indicated colder weather in the valley than was found 2,000 feet higher among the 
— at this time 89.5 Fahrenheit. The reverse occurs during the middle of the ° day, it being the warmer in 
the valley, em that the lg: oa has a less daily range in the mountains than in t wlands. The high grav- 
elly mesas and یو‎ probably absorb more heat by day and radiate more at night than do ds سرا‎ bottom ۰ 
December 14. —At 7.30 ۰ qa a KE coronz of variegated colors encircled the moon; slight snow at 8 p. m.; cumulus 
clouds at 8.30; appearance o re snow. 
December .一 The voce d pes and calm, the San Francisco mountains being free gnus clouds and clad in snow ; soon 
his o 
bank which rested upon the loftiest of the mountains i in front ; at 8 p. m. bright corone around moon; the atmosphere 
beautifully e and brilliant. 
December 1 و یے۔‎ € At 9 p. m., light green halo aroun 
e — breeze came from the east, tn nel cose ہے‎ and transparent ; day fine; the 
effect a slight depression of the e snow, which lies upon the ae akin wt میتی‎ =s 
سس‎ Clear d. ing the day. 
December 18.— The EN before sunrise was variegated with cirro-stratus clouds, producing an یداہ‎ ted halo, 229 diam. 
سس‎ V سید‎ ie inch thick covered the rivulet in the v valley. The spring itself was frozen; at 12 m., 
clouds, cirrus 7 ; wind rage ` ; at 1 p. m., wind west, 5; Fins ieiunii ene s n east. an denen ie dao 
dimmed with cirrus clouds; the night clear. Sunset, clouds’ moving southeast; night clear. . 
19.—The evening calm an 
—Sunrise uds 
20. 5 oving east. 
` December 28.— The day clear and pleasant; the night somewhat cloudy, threatening rain. 
