480 REPORT—1863. 
Taste 1V.—Showing the decrease of Temperature 
March 31. April 18.|| June 26. July 11. 
Height above State of the Sky. 
the level of the a Man is ae ee ttltC ee 
sea. Misty Cloudy 
shelow | clear. | Below || cloudy. me 
| . . ° . - 
2708 We le) aie | 8] ey ey 2 Bleed a 
From | To < a < </|A zi/a|]|a4a/A}]<4/aAalsaA < 
ft. ft. ° ° | ° ° ° ° ° ° ° ° ° ° ° 
28000|29000] ... “i Pee BW ae Ificeee i] cue Ieamull|. cee” |i piaten il een | ane 
27000|28000] ... 30s ies BBE ie eeeea Scien Mectsoue | ecco] foro 5 Oe lieocs 
26000| 27000] ... toe oe See) |\ esse l| aoe’ seme \tiveot Apron || tae itemma| tae 
25000|26000| ... weet [|e vee See y|| tenet | Moe bip)| eioteats lke appal yeas) heme wanda [ieee 
24000|25000| ... Bes) 4\| dass Fess| fovsvillifeee ||) coat |e caaad Mensall ees 300 
23000|24000] ... onc ore She di fecctall Geem: [Mire Il amgal Menten Mims (|| lemiielll tees 
22000|23000} I'o ne Bar (oJ Is eacoMl | Pies imocom foo. | enone || oan |) oso: |code tse 
21000|22000] I°2 08 || 073 |] O78 | O79 |] 2.2 | eae | coe | coe | ove | eee | cee Il aoe 
20000|21000}] 1°8 O17 i" 1075 OSG 5 4) .08 |) cee | see! |) veel ieee pees ll wes 
Ig000|20000| 1'9 o"4 0°5 || O79] O°8 |] vas | wee | see | eee | one | cee | eee 
18000|1g000] 271 | O'8 || O'7 |] TZ] T'S || wee | eee | cee | vee | ane | one 
17000|18000] I'9 ro | 1°5 1°3| 173 || see | oe | coe | woe | ove eee 
16000|17000} 2° 1°5 19 1-4"! 170)|\\55 Af leacce lt Mecine |e ae +e 
15000| 16000] 2°0 1'7 2°0 || 1°4| 12 yall) sono + | eee | ve : 
14000|15000| 2°'0 22, 2°I 1°39] Di]! coe | noe, | ose || cee ilese | ase 
13000|14000] 2°0 ZO a) Paes era) ee A Ia Vat | aec Om bars one | ee 
12000|13000| 273 21 || 2°r TA.) (Xz ||ese ||| ‘eos |) 00 a caper gaia aca 
II000|12000} 2°6 2°0 er TAN TAA ses Wheces ill oe . eve 
10000|11000| 2°7 19 253 16 4079) Ill wees || woe sll ses I ineen tees 
go000} 10000} 2°3 16 || .2°0 || 1°5 | O79 || oo | vee | eee efi rea 
8000] go0oo| 2°2 2°0 24 aes |) rer A oct cco mcs 1005 |} C03 
7000} 8000] 2°2 1°8 29 || 2°5| 1°8 Sere eccuel WIP! (coc cod. |) cobal ll Bae 
6000} 7000] 2°'2 a7. Q°2, 3°0| 1°6 wee’ Wiseeulliueste wo iftees reewcilt wee 
5000] 6000] 2°2 15 Z°O || 4°9|.2°B |] ose | ooo | 3°5 | E°Bil ices | sav | con |] wee 
4000| 5000} 2°3 17 4-Gri WP 4roi|! 3°Zit.e | ese fp 22Q)| 278i, awake wen) || ase! |Ihhews 
3000} 4000} 2'0 1°8 3°7 || 3°9| 4°5.|| 196 | 2°2] 3°5] 274] wee | coe | ane |] oon 
2000| 3000] 3'0 20 {1 3°5 |] 42] 5°8 |] 2°] woe | wee | 3°O] one | cee | eee |] 2°7 
1000| 2000] 3'0 323 21 1.37 3°38) Gr || 4°6| ... | o | 299] 1°9| 275] «|! 3:0 
o| 1000] 4°9 72 3°7 || 472] 6° || 8:4 | woe | cee | ove | soe | one | 3°4]) 3°2 
No. of Col, 3 2, 3. 4) OE 856, 75 7) SO pel el ne 
The numbers at the lower elevations are all larger than those at the higher, 
agreeing in this respect with the results of the experiments of the preceding 
year, and those with a clear sky are larger than those with a cloudy sky, also 
agreeing with preceding results. 
The numbers in columns 18 and 20 show the mean results from the experi- 
ments of this year, the former when the sky was cloudy, and the latter when 
clear or mostly clear. The numbers in column 19 show the number of expe- 
riments upon which each result in column 18 is based; at heights exceeding 
5000 feet the experiments were mostly made on one day, viz. June 26, the 
only day, in fact, on which clouds have reached and enveloped the balloon in 
different strata and densities, exceeding the height of 4miles. The numbers 
in column 21 show the number of experiments with clear skies, and they are 
but few. The numbers in column 22 show the total number of experiments 
which have been made at the different heights with a cloudy sky from the be- 
Descending. 
4 
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