584 



Table III. 



Daniel's Hygrometer, observed at 3 p.m., daily, and compared with the mean 



temperature. 





AUTUMNAL PERIOD. 



BRUMAL PERIOD. 



12 Days 

 of 



MEANS. 





Feb. 



March. 



April. 



May. 



June. 



July. 



August* 



Autum. 



Brumal. 



Au.&Br. 





o 



o 



o 



o 



o 



o 







0 



0 



Monthly mean tem, \ 

 from Table II. / 



5M0 



49-37 



41-22 



35-47 



32-97 



33-03 



33-25 



47-23 



34-49 



40-86 



Temperature of \ 

 dew point J " * 



41-31 



40-75 



34-83 



34-88 



30-28 



29-41 



30-28 



38-96 



31-52 



35-24 



Difference between"^ 

 mean temperat. > 

 and dew pomt J 



Dryness (the point"| 

 of Saturation be- > 



Elasticity of vapour 



9-79 

 711-8 

 295-7 



8-62 

 736-42 

 289-0 



6-39 

 809-9 

 238-64 



0-59 

 980-6 

 239-04 



2-69 

 903-8 

 202-24 



3-62 

 876-3 

 196-46 



2-97 

 894-6 

 202-2 



8-27 

 752-71 

 274-44 



2-30 

 920*23 

 212-58 



5-28 

 836-47 

 243-51 



Weight of a cubic 

 foot of vapour in V 



3-3441 



3-2801 



2-7550 



2-7926 



2-3731 



2-3048 



2-3421 



3-1264 



2-4902 



2-8083 



Table TV. 







Pressure. 





Temperature. 



Dew Point, 





Months. 







Air. 



Water. 



Hygrometer. 







Max. 



Mln. 



Range. 



Max. 



Min. 



Range 



Max. 



Min. 



Range 



Max. 



Min. 



Range 





inches. 



inches. 



inches. 



0 



0 



0 



0 



0 



0 



0 



0 



0 



February 



30-087 



28-768 



1-319 



66 



28 



38-0 



52-5 



43-7 



8-8 



51-2 



31 



20 2 



March 



30-099 



29-004 



1-095 



68 



30-5 



37-5 



50-5 



41-5 



9-0 



47 



35 



12 



April 



30-055 



28-844 



1-211 



57-5 



28 



29-5 



47-8 



40-5 



7-3 



42 



27 



15 



May 



29-850 



28-795 



1-055 



49-5 



20-5 



29-0 



48-2 



42-8 



5-4 



43 



21 



22 



June 



30-079 



28-274 



1-805 



48-7 



19-2 



29-5 



47-0 



40-3 



6-7 



41-5 



20 



21-5 



July 



30-500 



28-942 



1-558 



44-2 



12-6 



31-6 



45-0 



41-8 



3-2 



39-7 



19 



20-7 



August") 

 12 days/ 



29-782 



28-709 



1-073 



49-2 



18-5 



30-7 



43-1 



40-2 



2-9 



37-2 



20-5 



16-7 



