ABSTRACT FOR THE MONTH OF OCTOBER, 1899. 



Meteorological ObservationB, McGill College Observatory, Montreal, Canada. Height above sea level, 187 feet, C. H. McLEOD, SuperintendmU 



THERMOMETER. 



♦ BAROMETER. 



30 



3° 

 30 

 30 

 3= 



511 

 S" 

 344 



049 



3" 



30 



30 

 3" 



oa8 

 187 



190 



30 

 30 



30 



30 



329 



055 

 900 



■f' 



382 



483 



30 



30 

 30 



3» 



359 



If. 

 .,6 

 »48 

 ■73 



30 

 30 



966 

 ,89 





075 

 168 

 223 

 »73 

 ■73 

 "47 





073 



08S 



176 





219 





090 

 119 



"34 

 075 

 4S» 





181 

 387 



s.w. 



N.E, 

 S.E. 



29 Sunday 



W. 28.8° S 







AKALYSIS OF WINI) RECOBD. 



ti velocity.. 



«roato8tmUoagoin one bour wm 32, on the 

 5lh. 



QreatePt velooity in gustfli 36 miles per hour 

 n the 26th. 



ReBultaot mileaRe, 2.34^. 

 Resultant direotion, W. 28 

 Total mileage, 7,605. 



* Barometer readings reduced to sea-level and 

 temperature 32^ Fahrenheit. 



§ Observed. 



t Pressure of vapour in inohes of mercury. 



X Humidity relative, saturation being 100. 



\ 18 years only. « 13 years only. 



The greatest heat wa.s TS'.S on the Uth; the 

 greatest cold wa* 30.°0 on the 2Ut and 22nd, giving 

 a range of temperature of 43.8 degrees. 



Wannest day was the 17th. Coldest day was 

 the 21st. Highest barometer reading was 30-512 on 

 the 1st and 2nd. Lowest barometer was 29.721 on 

 the28thi giving a range of -701 inches. Maxi- 



mum relative humidity 

 Uth, 28th, 29th. Minimu 

 40 onthe2lBt. 



Rain fell on 



Snow foil o: 



Hoar frost 

 Lunar halo 



12 days. 



I 2 days. 



N fell on 13 days. 



m 1 day. 



m the 19th. 



Lunar 



19th. 



the 10th, Uth, 15th, 18th, 



