288 



Abstracts of the Makerstoun Observations, 1843. 



The mean pressure is greatest for the mean meteorological winter, and least for the warmest quarter 

 of 1843. 



The mean pressure for the year 1843 = 0-50 lb. 



The monthly means of the maximum pressures, Table XXIII., bear to the monthly means of the mean 

 pressures, Table XXIV., the following ratios : — 



Jan. Feb. March. April. May. June. July. August. Sept. Oct. Nov. Dec. 



1-57 1-66 1-78 1-80 1-77 180 1-80 2-35 200 200 208 1-98 



The mean for the year of the maximum pressures is 1*82 times greater than the mean for the year of the 



mean pressures. 



TABLE XXV, — Maximum Pressure of Wind in each Civil Day in 1843, with the Monthly Means. 



Civil 

 Day. 



Jan. 



Feb. 



Mar. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 





It). 



lb. 



lb. 



lb. 



lb. 



lb. 



lb. 



lb. 



lb. 



lb. 



lb. 



lb. 



1 



20 



6-8 



10 



2-8 



0-8 



0-9 



3-0 



2-3 



0-2 



2-4 



01 



0-8 



2 



1-2 



6-2 



1-2 



0-8 



0-6 



10 



3-8 



2-2 



0-5 



2-4 



00 



20 



3 



10 



5-5 



0-5 



2-0 



0-5 



1-6 



51 



1-2 



3-6 



0-7 



0-2 



2-5 



4 



3-0 



12-8 



0-5 



1-2 



0-9 



1-8 



1-3 



0-2 



11 



1-9 



2-4 



30 



5 



30 



1-8 



2-5 



2-8 



4-8 



1-5 



0-9 



3-2 



0-4 



0-8 



4-5 



7-6 



6 



1-5 



25 



0-8 



2-5 



2-8 



0-6 



2-2 



22 



0-7 



2-7 



2-8 



5-5 



7 



5-8 



2-0 



1-2 



1-5 



2-6 



11 



0-6 



1-5 



06 



2-8 



4-2 



4-9 



8 



3-5 



2-2 



00 



2-2 



1-7 



3-6 



0-5 



1-5 



0-2 



3-8 



3-4 



3-2 



9 



3-8 



3-5 



0-5 



10 



1-4 



2-9 



0-6 



01 



0-6 



0-5 



0-7 



0-2 



10 



60 



3-2 



0-2 



2-8 



0-9 



3-5 



1-7 



0-2 



0-3 



01 



0-5 



0-7 



11 



5-5 



1-2 



05 



3-2 



0-8 



1-7 



0-7 



0-7 



06 



0-8 



0-5 



1-2 



12 



00 



0-8 



1-8 



5-5 



0-6 



0-7 



1-9 



0-6 



0-5 



7-5 



0-7 



11 



13 



3-5 



0-8 



50 



2-5 



20 



1-2 



0-5 



0-3 



0-5 



41 



0-3 



3-6 



14 



7-5 



30 



0-8 



4-0 



1-2 



1-4 



M 



10 



0-4 



0-8 



10 



61 



15 



2-0 



0-5 



0-8 



20 



1-2 



0-8 



2-6 



0-8 



0-6 



1-2 



3-8 



7-5 



16 



1-8 



0-2 



1-2 



0-8 



2-4 



10 



2-6 



0-3 



21 



0-2 



0-5 



0-8 



17 



3-0 



10 



2-8 



0-5 



2-5 



0-4 



0-6 



0-5 



0-7 



31 



39 



31 



18 



30 



0-5 



1-2 



20 



1-2 



0-5 



3-4 



0-2 



2-7 



0-9 



4-5 



0-3 



19 



1-8 



1-5 



1-2 



10 



1-4 



1-0 



1-3 



0-3 



0-2 



0-4 



2-6 



0-3 



20 



1-2 



3-8 



0-5 



0-8 



1-9 



0-2 



1-3 



11 



1-2 



1-5 



51 



11 



21 



0-8 



2-5 



1-8 



0-5 



1-7 



1-5 



1-6 



1-2 



10 



1-6 



3-8 



0-2 



22 



1-5 



0-8 



2-5 



0-5 



0-8 



0-3 



0-6 



20 



01 



4-2 



7-2 



7-3 



23 



30 



1-2 



2-0 



1-5 



10 



1-2 



61 



1-9 



0-2 



4-7 



0-3 



5-2 



24 



3-5 



0-8 



2-2 



3-0 



2-8 



0-5 



0-4 



0-4 



0-3 



4-2 



00 



3-4 



25 



3-2 



0-2 



30 



4-8 



1-6 



05 



0-2 



1-9 



20 



0-7 



00 



2-2 



26 



2-5 



1-2 



40 



0-8 



1-6 



0-5 



1-9 



0-6 



11 



0-6 



4-3 



30 



27 



6-0 



2-5 



2-8 



2-2 



0-7 



20 



2-3 



1-4 



21 



1-0 



4-7 



0-8 



28 



90 



2-0 



1-2 



1-8 



30 



2-8 



0-7 



2-9 



2-4 



4-1 



4-7 



1-8 



29 



50 





0-5 



0-7 



20 



1-5 



1-9 



1-3 



0-7 



61 



4-8 



1-7 



30 



9-8 





0-5 



1-5 



0-7 



1-9 



1-7 



0-2 



1-6 



0-3 



2-2 



3-7 



31 

 Mean 



7-2 





3-8 





0-9 





0-9 



0-2 





0-3 





4-2 



3-60 



2-54 



1-56 



1-96 



1-58 



1-34 



1-74 



Ml 



0-97 



214 



2-46 



2-87 



If the maximum pressure observed at 1 ^^ on Monday morning was greater than the maximum observed 

 about noon on Sunday, the former was taken as the maximum for Sunday. 



The monthly means of the maximum pressure of wind in each day follow nearly the same law as the 

 monthly means, Tables XXIII. and XXIV. 



