412 Results of Makerstoun Observations, 1844. 



TABLE VIII. — Hourly Means of the Temperature of Evaporation for each Month in 1844. 



Mak. 1 

 M. T. 



Jan. 



Feb. 



March. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



h. 



12 



34-2 



28-8 



33-9 



40-4 



41-4 



48-2 



491 



48-6 



47-5 



41-5 



40-4 



30-8 



13 



34-2 



28-9 



33-8 



40-2 



41-1 



47-8 



48-5 



48-1 



47-1 



41-5 



40-5 



30-7 



14 



34-1 



28-6 



34-0 



39-4 



40-4 



47-6 



48-2 



47-8 



46-7 



410 



40-5 



30-6 



15 



34-1 



28-8 



33-6 



39-0 



40-0 



47-4 



47-9 



47-3 



46-3 



41-0 



40-4 



30-4 



16 



34-1 



28-8 



33-2 



38-9 



400 



47-6 



47-9 



47-0 



45-9 



40-9 



40-3 



30-4 



17 



33-9 



29-3 



330 



390 



40-8 



48-3 



48-9 



47-1 



45-9 



40-4 



40-3 



30-4 



18 



34-3 



291 



32-8 



40-0 



42-4 



49-6 



50-5 



48-4 



46-4 



40-7 



40-4 



30-3 



19 



34-7 



29-0 



34-0 



41-6 



43-9 



50-6 



520 



50-0 



48-5 



40-9 



40-4 



30-3 



20 



35-1 



29-6 



35-4 



43-3 



45-2 



51-5 



530 



51-6 



50-4 



42-5 



40-5 



30-2 



21 



35-6 



311 



36-7 



45-0 



46-1 



520 



53-6 



52-8 



51-9 



44-0 



41-3 



30-2 



22 



36-3 



32-5 



37-9 



46-7 



47-1 



53-2 



54-2 



53-7 



530 



45-4 



41-8 



311 



23 



37-4 



33-4 



38-6 



47-5 



48-0 



54-4 



54-9 



54-3 



53-6 



46-5 



42-3 



31-8 







38-2 



33-8 



39-4 



47-8 



48-6 



54-8 



55-3 



54-6 



53-6 



47-0 



42-5 



32-6 



1 



38-7 



34-3 



39-5 



47-8 



48-9 



55-0 



55-3 



54-8 



53-7 



47-3 



42-8 



33-2 



2 



38-5 



34-4 



39-7 



47-8 



49-3 



54-4 



55-6 



54-9 



53-8 



47-2 



42-5 



32-9 



3 



37-9 



33-6 



39-6 



47-3 



49-3 



54-0 



55-6 



551 



53-7 



46-6 



42-0 



32-1 



4 



36-8 



32-7 



38-9 



46-6 



48-7 



53-6 



550 



54-7 



530 



45-8 



41-3 



31-2 



5 * 



36-2 



31-6 



37-9 



45-7 



48-0 



53-2 



54-8 



53-7 



52-2 



44-5 



40-7 



30-8 



6 



35-4 



30-9 



36-7 



44-4 



47-0 



52-5 



53-9 



53-2 



51-3 



43-8 



40-7 



30-5 



7 



35-3 



30-7 



36-1 



430 



45-8 



51-6 



53-3 



51-9 



50-6 



43-4 



40-7 



30-5 



8 



351 



30-4 



35-5 



42-2 



44-7 



50-5 



52-2 



51-3 



49-7 



42-9 



40-4 



30-3 



9 



35-2 



29-9 



34-9 



41-3 



43-7 



49-8 



51-3 



500 



49-2 



42-3 



40-2 



30-4 



10 



34-9 



29-7 



34-8 



40-7 



42-9 



49-2 



50-5 



49-3 



48-4 



42-1 



40-1 



30-3 



11 



351 



29-8 



34-6 



40-4 



42-2 



48-7 



501 



48-3 



48-0 



421 



40-2 



30-3 



Diurnal Range of the Mean Temperature of Evaporation. — The ranges of the means, Table VIII., are as 

 follow : — 



Jan. 



Feb. 



March. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



4°-8 



5°-8 



6°-9 



8°-9 



9°-3 



7°-6 



7°-7 



8°-l 



7°'9 



6°9 



2°-7 



3°0 



TABLE IX. — Hourly Means of the Temperature of Evaporation for each Astronomical Quarter, 



and for the Year 1844. 



Mak. 

 M. T. 



Nov. 

 Dec. 



Feb. 

 March 



May 

 June 



Aug. 

 Sept. 



Year 

 1844. 



Mak. 

 M. T. 



Nov. 

 Dec. 



Feb. 

 March 



May 

 June 



Aug. 

 Sept. 



Year 



18-44 





Jan. 



April. 



July. 



Oct. 







Jan. 



April. 



July. 



Oct. 





h. 



12 



3513 



34-37 



46-23 



45-87 



40-40 



h. 

 



37-77 



40-33 



52-90 



51-73 



45-68 



13 



35-13 



34-30 



45-80 



45-57 



40-20 



1 



38-23 



40-53 



53-07 



51-93 



45-94 



14 



35-07 



34-00 



45-40 



45-17 



39-91 



2 



37-97 



40-63 



5310 



51-97 



45-92 



15 



34-97 



33-80 



45-10 



44-87 



39-68 



3 



37-33 



40-17 



52-97 



51-80 



45-57 



16 



34-93 



33-63 



45-17 



44-60 



39-58 



4 



36-43 



39-40 



52-43 



51-17 



44-86 



17 



34-87 



33-77 



46-00 



44-47 



39-77 



5 



35-90 



38-40 



52-00 



50- 13 



44-11 



18 



35-00 



33-97 



47-50 



45-17 



40-41 



6 



35-53 



37-33 



51-13 



49-43 



43-36 



19 



35-13 



34-87 



48-83 



46-47 



! 41-32 



7 



35-50 



36-60 



50-23 



48-63 



42-74 



20 



35-27 



36-10 



49-90 



48-17 



42-36 



8 



35-27 



36-03 



49-13 



47-97 



42-10 



21 



35-70 



37-60 



50-57 



49-57 



43-36 



9 



35-27 



35-37 



48-27 



47-17 



41-52 



22 



36-40 



39-03 



51-50 



50-70 



44-41 



10 



35-10 



35-07 



47-53 



46-60 



41-07 



23 



37-17 



39-83 



52-43 



51-47 



45-22 



11 



35-20 



34-93 



4700 



46-13 



40-82 



The ranges of the means for the astronomical quarters and for the year are 



Winter, 3°-36 Spring, 7°-00 Summer, 8°-00 Autumn, 7°-50 Year, 6°-36 



The ranges of the temperature of evaporation follow nearly the same law as the ranges of the temperature 

 The ranges for June and July are less than those for April, May, August, and September. 



of the air 



