ON THE RAINFALL OF THE BRITISH ISLES. 



297 



nAm -GAUGES (continued). 





Equivalents of 

 water. 



Scale- 

 point. 



.1 

 •2 



•3 

 '4 

 •5 



I'OO 



I-5S 



2'o6 



2-58 

 3-09 



4'6i 



■125 

 ■192 



•243 

 ■30S 



•I 



•2 



■3 



■4 



•5 



•I 



•234 



•4 



■5 



•I 



•2 



■3 



•4 



•5 



•I 



•234 



■4 



■5 



Grains. 



2525 

 5050 

 7570 

 10000 

 12500 

 2000 

 3000 

 4000 

 5000 

 ' 000 

 9000 



mo 

 t66o 



2160 

 2660 



490 

 9S0 

 1480 

 1980 

 2480 

 1250 

 3000 

 5000 

 6270 



5°5 

 1020 



1515 

 2010 

 2510 

 1250 

 3000 

 5000 

 6270 



En- 



scali 

 speei 



pre 



column 



•or at 

 •-point 

 ifiecl in 

 ions 



irevi 



in. 

 correct, 

 correct, 

 correct. 

 +■004 

 + •005 

 +•021 

 4--OI8 

 +•033 

 +•024 

 +•025 

 4-"oi3 



+•002 

 + •007 



-)-"002 

 + ■012 



+ •001 



+•002 



+ 'COI 



correct. 



— '001 

 + •001 



— ■002 

 + ■006 

 4- '006 



— •003 

 -•008 



— ■009 



— •010 



— •012 

 + •004 

 +■002 

 4- -014 

 +•016 



correct. 



+•005 

 +•011 

 +■002 



— •005 



— •003 

 correct. 

 + •002 



— 'OIO 



— •020 

 correct. 



+•004 

 +•005 

 +•001 

 4- "004 



Azimuth and an- 

 gular elevation of 



objects above 

 mouth of rain- 

 gauge. 



E.N.E.House30°. 



W. Trees S8°. 

 S.W. „ 22°. 

 S. „ 5°. 



W.S.W. Apple20^. 

 N.E. „ 32°. 



N. IIonse30°. 

 S.W. Trees 43°. 



N. Ehn 40°. 

 N.E. „ 28°. 

 N.W. „ 33°. 



Eemarks on position &c. 



S.W. Sycamore 



44°. 

 N. Chestnut 46°. 



W. House 48°. 

 S.S.W. Trees 30°. 

 S.S.E. Trees 25°. 

 N. Trees 25°. 



A eecond, or check-gauge, not 

 found reliable, although accu- 

 rate in construction. 



This is not the old Dalkeith gauge, of 

 which the fate is unknown, but a com- 

 paratively modern one, on a grass- 

 plot, which at the above date had 

 been allowed to grow too long; level 

 ground and good x^osition. 



A very bad gauge, wofully out of 

 order, very unsteady, not level, 

 and so generally unsatisfactory, 

 that it was not thought worth 

 wliile to test its precise error. 

 This position, though good, was not that 

 which it was intended should even- 

 tually be occupied by the principal 

 gauge at this station, as Mr. Forbes 

 contemplated railing off a portion of 

 the park expressly for meteorological 

 apparatus. 

 In nursery garden sloping to south. 

 I urged that the gauge should be 

 shifted a httle to N.E. to get 

 more away from the trees, which 

 was agreed to. 

 Fair position, near the bottom of a 

 rather flat valley. 



Close to Ko. 441 . This gauge 

 has a very flat rim. 



Close to 441 and 442. This is an 

 experimental gauge, of the re- 

 markable pattern shown in the 

 annexed figure. Funnel, 8 in. 

 diameter, circular, rim vertical 

 and ^ in. deep; funnel scarcely 

 falling at all to centre, not more 

 than J inch : a, a rim falling 

 loosely over ; b, a tin cylinder to 

 keep funnel in place. 

 Neither this nor the following gauge 

 were regularly attended to at the time 

 of this examination ; but it was pro- 

 mised that they should be in future. 

 The former was in an enclosed part of 

 the ruins of St. Mary's Abbey, the 

 latter on the roof of the Museum of 

 theYorkshirePhilosophical . *— j-'^- -..». 

 Society — the position, in ' 

 fact, occupied in 1836 by 

 one of the experimental 

 gauges used by Prof. Phil- 

 lips. 

 This gu.age was of unpainted 

 sine, and had a 3-inch deep 

 snow-collecting rim, as per 

 Bketch, 



