6 E. Loomis— Contributions to Meteorology. 
Cases in which the reduction to sea-level was unusually great. 
it Want Mean Red. to sea-ley. | Difference. Low | iat. Waa. 
No. Date. Barom.| Temp. Obs. | Lapl.|Table Lapl. |Table|ret’a.| ‘Wind. 
1872 Nov. 7.3) 22°78 | 30°-2 |6°49 | 6°19 |6-41 |0-30 0-08 8 IN.W. 65 
8.1 “81 31-2 |6°54 | 6°18 |6°40 6 4 8 IN.W. 48 
Ls. 8.2) “96 34-2 6°49 | 6°18 |6°35| -31 | 14] 8 IN. 65 
9.1) 33712 99°71 |6°65 | 6°29 |6°42 | -36 | -23 8 IN.W. 58 
9.2 24 99°% |6°65 | 6°32 |6°43 | -33 | -22 8 |W. 48 
if 29.2| 22°89 22°0 |6°81 | 6°35 (6°53 | -46 | -28 4i1S.W. 35 
9 30.1 63 10°2 |6°81 | 6-47 16°72 | -34 , -09 4 |N.E. 45 
30.3 “78 9°5 |6°89 | 6°51 16°73 | -38 | -16 4 |W. 48 
Dec. 5a "85 12°5 |6°99 | 6°50 |6°68 | -49 SE 4 |N. 52 
3$ 3.2] 23°14 | . 26°5 |6°66 | 6°35 6°48 | -31 | -18| 4 /S.E. 60 
d 4.1 "24 21°7 [6°78 | 6°45 16°55 | -33 23 4 (W. 58 
4 10.1] 22°78 2 16°87 | G57 |6-76 | -30 11l{ 16 |W. 59 
5 15.2) 23°12 20°6 (6°82 | 6°45 [6°57 | -37 265 7 IN. 68 
6 22.2 05 1°2 |7'13 | 6°77 16°95) -36 18} 13 |W. 43 
ff 24 : 13:0 7°44 }°%°00 !7-22 | -44 | -29 ? |W. 44 
8 22°75 |—10°% |7°21 | 6°89 |7-16 | -32 05| 15 |IN.E. 60 
9 1873 Jan. 6.2 14 5°0 16°96 | 6°54 |6°64 | +42 32 9 |W. 60 
ee 06 |— 1°2|7°10| 6°80 (6°95 | -30 1S (7822 IN, 76 
Il 29 40 js 247 147-6 83.16°97 | °31 17 4 IW. 54 
124 Feb. 10.1; 22°96 |— 2 7°18 | 6°80 |6°96 | -38 22 TAIN Ws 7 
10.8 ‘Ol 7 |'7°08 | 6°75 |6-89 | °33 2 ? IN. W. 103 
March 16.2] 22°78 | 21:7 |6°67 | 6°32 |6°54' -35 | -13; 13 |W. 28 
13 16.: 14 17°2 |6°88 | 6°39 16°61 | -49 971 13 IN.W. 56 
it. "87 14°2 |6°95 | 6°47 |6°65 | -48 | -30) 13 |W. 56 
it 3°16 17°7 (6°81 | 6°49 |6°60 | -32 O11 1a: IN. W.. 25 
14 24.1} 22°99 8-0 {7-07 | 6°60 16°76 | -47. | -31) 13 |W. 48 
15 Dec. 10.1) 23°33 23-7 16°78 | 6°44 |6°53 | °34 25 .W. 62 
164 1874 April 30.2} 22°67 23°2 16°72 | 6°28 '6-51 | -44 | -21 4 .W. 130 
30.; 42 23°5 |6°70 | 6°30 16°51 | -40 | -19 4 |N.W. 115 
17 Dec. 29-2} 23°02 11°2 |6°88 | 6°58 |6°70 | -30 | -18| 18 |N.W. 80 
; “OL 5°2 2 6°87 (7-0. 35 19; 18 IN.W. 98 
18 1875 Jan. 9.3} 22°70 |— 8°7 /7°26, 6:85 |7°10} -41 16 .W. 100 
“91 12°0 |6°89 | 6°54 |6°6 35 20} 28 IN.W. 70 
14. “82 4 3 | 6°80 |6°99 | °33 14] 28 Ww. — 
19 15. “T1 |—15°5 |7-42 | 6°98 |7-29 | -44 | +13] 28 Ww. — 
16. *95 |—10°2 |7°25 | 6°95 |T-14| -30 11 | 28 Ww. — 
L 16.3 “00 [— 7°65 17 6°92 (7-0 “32 15; 28 Ww. — 
20°* | 22°91 |—11°2 17°28 | 6-96 |7-1 “32 10} 12 Ww. 
a 21 25.3 “O38 3°0 j6°91 3 16°68 | -38 23 Ww. 80 
; { 26.2 "95 0°0 '7°14.1 6°76 '6°91 | *38 | -23 9 WwW. 94 
ary; 5 in March and 2 in April. During the six months 
from May to October inclusive, no case occurred in which the 
observed reduction differed 0°3 inch from that computed by 
the Laplace formula, and four-fifths of these cases occurred in 
: - the months of November, December and January. Fifteen of 
these cases occurred at the 7.35 A. M. obs.; 16 occurred at the 
4.35 Pp. M. obs.; and nine at the 11 P. M. obs., indicating that 
the diurnal change of temperature has an appreciable influence 
upon this phenomenon, but that it is mainly dependent upon 
some other cause. It will also be noticed that in every one of. 
i 
E 
