BEN NEVIS AND FORT-WILLIAM BAROMETERS. 



517 



TABLE II.— MEAN HOURLY DEPARTURES. 



Excess above the mean values in bold type and defect from it in italic. 

 Difference of the Barometebs at Sea-Level. 





1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



3 



19 

 3 



20 

 6 



21 

 11 



22 

 11 



23 



Mid- 

 night. 



Spring 



15 



14 



14 



12 



12 



8 



1 



8 



u 



17 



18 



18 



16 



13 



12 



11 



6 



12 



13 



Summer . 



14 



13 



14 



13 



10 



3 



3 



9 



12 



14 



14 



13 



12 



13 



13 



10 



7 



5 







5 



9 



11 



13 



13 



Autumn . 



9 



9 



10 



8 



9 



9 



10 



4 



3 



7 



12 



14 



15 



15 



15 



12 



4 



2 



4 



5 



7 



7 



8 



7 



Winter . 



3 



3 



3 



4 



4 



3 



5 



4 



3 







3 



7 



9 



10 



8 



4 







1 



3 



3 



4 



3 



3 



2 



Year 



10 



10 



10 



9 



9 



6 



3 



2 



6 



10 



12 



13 



13 



13 



12 



9 



4 



2 



2 



5 



8 



8 



9 



9 



Difference of Temperature. 





1 



•2 



3 



4 



5 



6 



7 



8 



9 



10 

 •3 



11 



12 



13 



14 



15 



lfi 



17 



18 



19 



20 



21 



22 



23 



Mid- 

 night. 



Spring 



2-8 



3-5 



4-0 



44 



4-7 



4-9 



3-6 



2-6 



•8 



1-5 



23 



3 2 



40 



4-6 



51 



49 



4'6 



36 



1-9 



•5 



■6 



1-4 



2-2 



Summer . 



2'7 



3-1 



3-3 



3-7 



3-8 



3-3 



1-9 



1-0 



■o 



•6 



1'4 



17 



2-2 



27 



3-3 



32 



36 



35 



2'8 



1'3 



•2 



■8 



V7 



2-4 



Autumn . 



11 



2-0 



2-4 



2-2 



2-3 



2-6 



2-3 



1-9 



16 



1-1 



•4 



12 



2-2 



2*9 



3-6 



41 



37 



27 



1-5 



•5 



■o 



•6 



V2 



1-7 



Winter 



■6 



1-0 



■9 



V2 



VI 



1-2 



1-0 



1-2 



1-4 



1-1 



•5 



5 



1-4 



21 



2-6 



2'5 



1'6 



11 



•5 



■1 



•1 



1 



•2 



■3 



Year . ■ 



2'0 



2-4 



2-6 



2-9 



3-0 



3-0 



tD-O 



1-7 



1-0 



•3 



7 



1-4 



2'2 



2*9 



35 



37 



3'4 



3-0 



21 



•9 



•2 



•5 



VI 



1-6 



Mean Temperatures. 





1 



2 



3 



4 



5 



6 



7 



1 

 8 9 



10 



11 



12 



13 



14 



15 



16 



17 



18 

 33 



:9 

 2-0 



20 



21 



22 



23 



Mid- 

 night. 



Spring 



3-6 



4-1 



4-3 



4-6 



4-6 



4-2 



3-0 



1-6 



■o 



13 



27 



3-5 



4'5 4'9 



51 



4-9 



4'2 



•5 



■6 



1-4 



2-2 



3-0 



Summer . 



3-1 



3-5 



3-9 



4-1 



4-1 



3-4 



2-3 



1-3 



1 



1-0 



2 



2-6 



3'6 41 



4'4 



4-2 



3'9 



3 3 



2 3 



•8 



•4 



1-4 



2-2 



2-8 



Autumn . 



1-8 



2-1 



2-2 



2-4 



2-6 



2-7 



2-6 



2-0 



•7 



3 



15 



2-4 



29 35 



I 



37 



34 



2 5 



15 



•8 



•1 



■4 



1-0 



V2 



1-5 



Winter . 



■5 



■7 



•6 



■8 



1-0 -9 



1-0 



1-2 



1-0 



•7 



1 



•8 



1-5 17 



17 



1'3 



•9 



•4 



3 



•2 



1 



■o 



■o 



•2 



Year 



2 '2 



2-6 2-8 



3-0 



3-1 2-8 



1 



2-2 



1-5 



•4 



5 



16 



2 3 



31 



3 6 



37 



3 4 



2'9 



21 



14 



•4 



•3 



1-0 



1-4 



1-9 



Me 



an Temperatures required to make Ben Nevis and Fort- William Barometers 





AGREE AT SEA-LEVEL. 





1 



2 



3 4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 



Mid- 

 night. 



Spring 



1-7 



2S 2-5 3-0 



3-0 



3-3 



3-1 



2-6 



1-7 



■8 



•3 



11 



2'4 



32 



3'4 



3'4 



34 



2'9 



2-5 



13 



•9 



1 



•6 



1-3 



Summer . 



1-2 



1-7 2-0 2S 



2-7 



2-9 



2S 



2-3 



1-4 



■8 



•2 



10 



21 



2-5 



2-8 



3-0 



3*0 



2 6 



23 



16 



•9 



•2 



■4 



1-0 



Autumn . 



•6 



■9 -9 V3 



1-4 



1-4 



1-3 



15 



1-1 



•5 



•o 



•6 



1-0 



15 



1-8 



1-9 



2 



13 



13 



•6 



•5 



■o 



■2 



•6 



Winter 



■o 



•2 -2 -3 



■4 



■6 



•5 



•7 



•7 



■8 



■4 



■2 



•2 



3 



•6 



7 



•8 



•6 



•6 



•4 



•5 



3 



•2 



•1 



Year 



■9 



l-s\l-4 1-7 



1-9 



2-0 



V9 



1-8 



1-2 



■7 



•o 



•6 



1*4 



1-9 



21 



2'2 



2-3 



1-8 



17 



l'O 



7 



2 



•3 



•8 



