f ON ATMOSPHERIC WAVES. 37 
yted at distant and especially at extreme stations, and to distinguish 
2en those effects, which, although to a certain extent contemporaneous 
milar, may be referred to different sources of production. 
including in the discussion of the observations of 1842 observations 
Iten in Finmark and at Lougan in Russia, the former being situated 
h lat. 69° 50’, east long. 23°, and the latter north Jat. 48° 35’, east long. 
21', our area of examination is extended from Ireland to the eastern 
ers of Europe, and from Geneva to the northern extremity of the same 
nent; it will consequently embrace 47 degrees of longitude and 23 of 
ndwork of the discussion, will be found in the volume for 1846, p. 141; 
eadings at St. Petersburgh during the same days at noon, are recorded 
167 of the same volume; and the following table includes readings for 
ame period at Alten, Lougan and Geneva. 
Taste II. 
Barometric readings at Alten, Lougan and Geneva, Nov. 1 to 26, 1842. 
‘ > 
Alten, Lougan, | Geneva, 
Date. 3 P.M. noon. noon. 
Nov. 1] 30°138 } 29°312 | 30°338 
2 “601 *300 | 30:°089 
3 *589* "088 | 29°884 
4 *288 "440 | ~ *820 
5} 80°140 "459 “786 
6| 29°690 *332 “864 
7 “416 °769 | 29°926 
8 *596 | 29°980 | S0°011 
9: "436 | 30°106 080 
10 "514 | 30°001 | 30°056 
11 "A53 | 29°810 | 29°842 
12 607 785 | 29°842 
13 "586 "623 | 30°097 
14 *134 "613 “100 
15 "092 °599 | 30°084 
16 "303 676 | 29°863 
sy 17 | 29°641 *689 | 29°891 
5} 18} 30-110 610 | 30°334 
19} 30:066 “609 *529 
20} 29°825 "885 | 30°098 
21 658 "638 | 29°707 
22 "674 4:45 731 
23 "539 "294 "865 
24 *970 785 "549 
25 "715 °738 "364 
26} 29°880 | 29°791 | 29°271 
I will be readily seen from an inspection of this table that the observa- 
* Max. on the 3rd at 9 A.M. 30°618. 
