xlx Meteorological Ohservations. 



Abatract of Ihe JlesidU of the Jlourltj Meteorological Ohservations 

 taken at the Survei/or GeneraVs OU'ice, Calcattay 

 in the mouth of J^me 1874. 



Monthly Eesults. 



Indies. 



Mean Leiglit of the Barometer for tlje montli ... ... ... 29.591 



Max. lieiglit of tlie Barometer occurred at 10 a. m. on tlie Srd ... 29.875 



Min. lieiglit of the Barometer occurred at 4 & 5 p. m. on the 26th ... 29.287 



Extreme range <di the Barometer during the mouth ... ... 0.588 



Mean of the daily Max. Pressures ... ... ... ... 29.649 



Ditto ditto Min. ditto ... ... ... ... 29.524 



Mean daily range of the Barometer during the month ... ... 0.125 



o 



Mean Dry Bulb Thermometer for the month ... ... ... 83.7 



Max. Temperature occurred at 2 r. m. on the 1st ... ... 97.0 



Min. Temperature occurred at 4 & 5 a. m. on the 8th & 10th ... 77.0 



Extreme range of the Temperature during the month ... ... 20.0 



Mean of the daily Max. Temperature ... ... ... ... 90.2 



Ditto ditto Min. ditto, ... ... ... ... 79.8 



Mean daily range of the Temperature during the month ... ... 10,4 



Mean Wet Bulb Thermometer for the montli ... ... ..^ 80.0 



Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer 3.7 



Computed Mean Dew-point for the montli ... ... ... 77.4 



Mean Dry Bulb Thermometer above computed mean Dew-point ... 6.3 



Inches. 

 Mean Elastic force of Vapour for the month ... ... ... 0.922 



Troy grain. 

 Mean Weight of Yapour for the month ... ... ... 9.89 



Additional Weight of Vapour required for complete saturation ... 2.18 

 Mean degree of humidity for the month, complete saturation being unity 0.82 



o 

 Mean Max. Solar radiation Thermometer for the month ... ... 140.9 



Inches. 

 Eained 24 days, — Max. fall of rain during 24 hours ... ... 1.47 



Total amount of rain during the month ... ... ... 6.89 



Total amount of rain indicated by the Gauge* attached to the anemo- 

 meter during the month ... ... ... ... ... 6.08 



Prevailing direction of the Wind ... S., S. S. E. & S. by E. 



* Heiglit 70 feet 10 iuches above ground. 



