Meteorological Observations. 



XXXlll 



Abstract of the Results of the Hourly Meteorological Observations 

 taken at the Surveyor General's Office, Calcutta, 

 in the month of May, 1858. 



Latitude 22° 33' 1" North. Longitude 88° 20' 34" East. 



feet. 

 Height of the Cistern of the Standard Barometer above the Sea level, 18.11 



Daily Means, &c. of the Observations and of the Hygrometrical elements 

 dependent thereon. 





c <u 

 4J, 15 -J 



Range 



3f the Barometer 



5 ^ 



3 £ 



Range of the Tempera- 





f 12 



during the da 



y- 





ture during the day. 





* ca cm 



CO 









q a 





















<o 



2 5 a 



Max. 



Min. 



Diff. 



c J 



Max. 



Min. 



Diff. 



Q 



1 









s 











Inches. 



Inches. 



Inches. 



Inches. 



o 



o 



o 



o 



1 



29.707 



29.781 



29.606 



0.175 



86.9 



94.3 



81.3 



13.0 



2 



Sunday. 

















3 



.713 



.810 



.620 



.190 



83.6 



92.2 



75.8 



16.4 



4 



.684 



.753 



.613 



.140 



86.0 



94.2 



79.0 



15.2 



5 



.646 



.707 



.552 



.155 



86.7 



92.6 



81.6 



11.0 



6 



.660 



.738 



.583 



.155 



87.4 



94.3 



82.2 



12.1 



7 



.644 



.702 



.578 



.124 



86.5 



94.0 



79.6 



14.4 



8 



.652 



.730 



.568 



.162 



87.3 



94.4 



81.6 



12.8 



9 



Sunday. 

















10 



.727 



.815 



.657 



.158 



84.6 



91.4 



80.7 



10.7 



11 



.670 



.737 



.596 



.141 



86.0 



92.6 



80.4 



12.2 



12 



.642 



.717 



.564 



.153 



87.3 



95.0 



81.2 



13.8 



13 



.619 



.679 



.533 



.146 



87.3 



95.0 



81.0 



14.0 



14 



.622 



.683 



.559 



.124 



88.1 



96.0 



82.1 



13.9 



15 



.623 



.672 



.561 



.111 



86.3 



95.8 



79.8 



16.0 



16 



Sunday. 

















17 



.565 



.635 



.484 



.151 



82.9 



91.6 



78.6 



13.0 



18 



.510 



.577 



.435 



.142 



82.0 



87.6 



79.4 



8.2 



19 



.385 



.455 



.312 



.143 



84.2 



90.8 



79.8 



11.0 



20 



.276 



.347 



.201 



.146 



80.7 



86.2 



78.2 



8.0 



21 



.382 



.426 



.321 



.105 



86.1 



94.0 



78.0 



16.0 



22 



.440 



.498 



.358 



.140 



87.7 



95.2 



83.4 



11.8 



23 



Sunday. 

















24 



.511 



.587 



.459 



.128 



87.4 



94.8 



79.0 



15.8 



25 



.549 



.607 



.498 



.109 



83.9 



89.8 



78.0 



11.8 



26 



.608 



.691 



.552 



.139 



85.0 



90.4 



81.8 



8.6 



27 



.601 



.675 



.511 



.164 



86.6 



95.2 



79.4 



J 5.8 



28 



.574 



.640 



.514 



.126 



88.0 



96.6 



82.3 



14.3 



29 



.600 



.653 



.536 



.117 



89.8 



996 



83.8 



15.8 



30 



Sunday. 

















31 



.626 



.674 



.570 



.104 



88.2 



100.6 



82.2 



18.4 



The Mean height of the Barometer, as likewise the Mean Dry and Wet Bulb 

 Thermometers are derived from the twenty-four hourly observations made during 

 the day. 



