ON ATMOSPHERIC WAVES. 161 
TABLE XIII.—Exhibiting the principal features of the waves of the N.W. 
system Nos. 2, 4, and 6. 
Wave No. 2. 
Winds. 
Epochs. Phases. Directions and Localities. VACANCES eae 
Anterior | Posterior 
— _Slope._|_Slope._ 
Nov. 1 Crest. N.W. of the United Kingdom ...... 
2 Crest. N.W. of the United Kingdom ...... N.E. 
3 Crest. N.W. of the United Kingdom ...... ae N.E. 
4 Crest. N.W. of the United Kingdom ..,....; 3049+] N.E. 
5 Crest. From Cork to the Orkneys ......... 30°55 N.E. 
6 Crest. SiH; Of, Belfastil nosee's detsaoscaasecaces 30°51+| N.E. 
7 Crest. S.E. of the Orkneys .......sssesessseee 3043+] N.E. | S.W. 
8 Crest. Passes Plymouth..........s..cseeeseeees 30°13 
2 Crest. NH Of Barigg 22-64 s50scsfGncsanntsessés 29-904 S.W. 
9 | Post. Trough. [Passes the Orkneys.......06 sessecesees 28°80 S.W. 
10 | Post. Trough. |Near the eastern coast of Ireland 
: extending to Christiania............ 29°24 S.W. 
11 Crest. Considerably S.E. of Paris............ 
11} Post. Trough. /Passes Plymouth....... matehecs EEE 29-12 S.W. 
Wave No. 4. 
Noy. 17 Crest. Passes Belfast ........ssssssesceceesecees 30:51 | N.E. E. 
18 Crest. Passes London .......ssceeceseeeeeenes 30:53 | N.E. S.W. 
19 Crest. Considerably S.E. of Paris....... aah 
Wave No. 6. 
Noy. 21 Crest. N.W. of Belfast and Cork ........ Fr ha cercce N.E. 
22 Crest. Near Cork, Belfast and Orkneys...... 29°58 
23 Crest. Passes London ......sssenseseseescaees 29°59 S.W. 
24 Crest. Near to or S.E. of Paris...... cae Perse S.W. 
Tazsrie XI1V.—Exhibiting the principal features of the waves of the S.W. 
system Nos. 1, 3, 5, 7, 9, 11, and 13. 
Wave No. 1. 
Winds. 
Epochs. Phases. Directions and Localities. Algtudes.| |= 
Anterior | Posterior 
Slope. Slope. 
Nov. 1 Crest. Belfast to Paris <.......cececessseeceeee 30°33 | N.W. S.E. 
2 Crest. Between Belfast and Christiania ...| 30°23+-|N.N.W.| S.E. 
3 Crest. W. or S8.W. of Christiania ............ 30:31+]| N.W. S.E. 
7 | Post. Trough. |N.E. of Belfast and Paris ............ 
Wave No. 3 
Nov. i Ant. Trough, |N.E. of Belfast and Paris ............ 
Crest. S.W. of Belfast and London ......... Peecen SNA 
o Crest. Belfast to! Paris” cccccccessecncsec-oce0se 29°64 | N.W. S.E. 
11 Crest. |Near Christiania ............ce0...sceeee 29:48 S.E. 
12 | Post. Trough. |Between Belfast and Shields......-.. | 
1846. M 
