ON THE RAINFALL IN THE BRITISH ISLES. 437 
small* to give very reliable values; so that only the records for the periods 
since that date were made use of. The following Tables contain the results 
of this grouping for each decennial period. The first column gives the 
limiting amounts for the groups; the second, the name’of the district ; the 
third, the number of stations represented in that district, from which the 
mean percentage values (which follow in the other columns) have been ob- 
tained. It has been thought better also to bring together the groups of equal 
value in each district for the sake of intercomparing the results. 
Taste I].—Enetanp anp WALES. 
Monthly percentage of Annual Rainfall. 
(Mean Values. Stations arranged in 5-in. groups according to their annual fall.) 
Pe 6 3 § g Monthly percentage of Annual Fall. 
as | 82 |23 
Haq | 4A S| Jan. | Feb. | Mar. | Apr. | May. | June. July. Aug. | Sept. | Oct. | Nov. | Dee. 
; DeEcENNIAL |PEeRiop| 1830-39. 
iW: oO. c 
C. or || =~ <% as A dee aa ee ds aaa ae fe das 
BE. {*r.] 5°5 | 64] 46 | 68) 741/111 | 106 | 98 | 11-4 |10°3 | 9:9 | 6°5 
W. Ie} 72 5 | 62) 5:2 | 66 |rr°0 | 11°2 | 98} 88] 9°5 |10°0 | 81 
C. 521] 75] 64] 69} 66] 99 |10°7 | 8-7 |11°5 | 9°4 | 10°5 | 6°7 
EH. 7 65) 79] 63 | 68} 64 ]r01 | 87] 975 | 104 ]102 | 98] 7°74 
W. 2.| 770 | Bo | 64) Go| 4:7 |10°2} 8-1 | 7°7 | 8-5 | 101 | 13°76 | 9°7 
C. OF |! eho ee. Ai $e ae = eo I cee as Be veo Uleee 
E. 3. | 6&9 | 81 | 66 | 64] 5°7 | 10°5 | 9°7 | 9°5 | gtx | 91 | 10°5] 7°9 
Ve 6.) 67) 78) 71) 58] 471] 97 | gt] 82] 88] gg | 128] 94 
C. ° be sich (PsceP [howe [a eected|) 2.8 bsene 
E. °. te a 
vs 2.) 64} 73] 73] 57] 43] 99 | 10% | 87 | 94] 97 J1K9 | 9°6 
. °. see eee eee eee eee eee see eee eee eee see tee 
E. °. 
W. 1.| 70} 80] 78) 58] 4:4] 88] 89 | 87] 92] 975 |12°5 | 94 
5-60 | W. 1. | 772} 94] 81 | 4°95] 2°99 | 821] 9°5 | 81] 9°5 | 10°2 | 11°5 | 10°9 
DeEcENNIJAL |PERIoD|] 184/0-49. 
W. | o. aozt ile es st be " 
C. Ogee ed BE ee arc sbenill ae Bail etsy ot cats elles oy all das % ee a 
E. 1.| 66] 4:8 | 51 | 66 ]10°5 | 9:0] 9°7 |10°0] 9°5 1136] 7°78] 68 
W. 82] 71) 57) 770} 71 | 88} 96 | 10:0 | 83 | I1-2 | ror | 69 
C. In|) 772) 7°O'|, 5°5.| 6-3.] 84.) 82. 7°8.| 9:9.) 11-2 | II-g4!' gg |, 6:7 
E. 7O} 62! 59] 67] 9°] 775 | 96 |106 | g2|12°7 | 94] 62 
W. 3. | 82] 66) 61) 62) 74) 777] 86] 98] 975 | 1174 | 112] 773 
C. Ani) #0.) 7°4.| 6-2 }, 6:6.) 7°6.) 7°7.) 7°7 | 10°.) 9°6 | 18-7 o| r0'4 |) 7x 
E. Taare | 6:8) Go,| Gx | 8:0) 7°38) 9°7 |) 919.1 8:9 || 22:45 IiNoron ory 
* A large number of registers are useless in the present investigation, because they do 
not contain complete records during either of the decennial periuds. Thus a register from 
1832 to 1847, although containing sixteen years’ observations, must be put on one side, 
since neither of the periods 1830-39 or 1840-49 is fully represented. 
~o 
