228 AGRICULTUKAL REPORT. 



REMAKES ON TORONTO METEOEOLOGICAL REGISTER FOR OCTOBER, 1ST2. 



XoTE. — Tbo monthly means do not includo Sunday observations. The daily means, excepting those 

 that relate to the v.-inil. are derived from six observations daily, namely, at C a. m., 3 a. m., M p. m., 4 p. 

 m., 10 p. m., and midnight. The means and resultants for the -wind arc i!rom hourly observations. 



Highest barometer 30.194 at 8 a. m. on 20th ) ,f„„4v, ^„ „ n^. 



Lowest barometer 29.226 at midnight on 15th 5 -^lon.uiy range -— 0. 0G8. 



f Maximum temperature tO^O on 6th Kt„„+i,i,. .,„„„„ ^,,3 



I Minimum temperature 2502 on 20th 5 ^onthlj range = 41-8. 



Self-registering I Mean maximum temperature 54^11 Kj- -, •, ir^no 



thermometer. ) Mean minimum temperature 37=13 i -"-^^^^ "^uy range—io- JH. 



I Greatest daily range 25 oc from a.m. top.m. of 3d. 



I Least daily range 5°0 from a. m. to p. m. of 26th. 



Warmest dav, Cth mean temperature 56^63 ) t,-«. , onm 



Coldest day,' mh mean temperature 37372 5 •'^'™^*'°'=° — 1^^^- 



Maximum radiation { grrestri-i; :::::;:::::;::;:::;;::::::;:: ;i7?^'oSh } Difference = losoo. 



Aurora observed on 9 nights, viz : 1st, 2d, 3d, 5th, 7tli, 14tb, 16th, 28tb, and 29th. 



Possible to see aurora on 21 nights ; impossible on 10 nights. 



Raining on 14 days ; depth, 3.2ri8 inches ; duration of fall, 73.8 hours. 



Mean of cloudiness = 0..51. 



Snowing on 1 da3'; depth inappreciable ; duration of fall, 0.5 hour. 



Resultant direction, N. 18^ W. ; resultant velocity, 2.22 miles. 

 Mean velocity, 4.59 miles per hour. 



Maximnm velocity, 29.2 miles, from 7.30 to 8.30 a. m. of 16th. 

 Most vrindy day, 14th ; mean velocity, 15.19 miles per hour. 

 Least -windy day, 20th ; mean velocitJ^ 0.15 miles per hour. 

 Most windy liorir, 2 p. m. ; mean velocity, S.42 miles per hour. 

 Least windy hour, 11 p. m. ; mean velocity, 2.54 miles per hour. 

 IFirst snow of the season on 14th. 

 Fog on the 5th, 9th, 18th, and 20th. 

 Thunder on the Cth and 15th. 

 Lightnin;^ on 0th. 

 Lunar halo on 11th. 



The auroral display on the lUh was very brilliant, and accompaniod by considerable magnetic dis- 

 turbance. 



Fogs. — Eemarkably acrid or fetid fogs have been observed to proceed 

 or accompany some epidemics of influenza. Dr. Arbuthnot remarks on 

 the prevalence of fogs, not only in England but in France and Ger- 

 many as well, in connection with the influenzas of 1727 and 1732-'33. 

 In the latter year there had been a severe drought, wells were dry, and 

 from November 4 till Christmas there prevailed stinking fogs, a higher 

 temperature than usual, great storms of wind from the southeast, and 

 lightning without thunder. It was further observed by surgeons that 

 wonnds showed a great disposition to mortify. But in the great ma- 

 jority of influenza epidemics and epizootics there has been no such co- 

 incidence. The present equine aflection has neither been preceded nor 

 attended by any such phenomenon. Fogs -appeared on but three days, 

 6th, 11th, and ISth of September, 1872, whereas they existed on six 

 days, 1st, 4th, 5th, 13th, 16th, and 19th of September, 1871. Fogs and 

 vapors, impregnated with sulphurous gases or other bad smelling or 

 l^utrefying elements, would undoubtedly nndermine the general health, 

 and favor the diffusion of such a disease as influenza ; but the origin 

 and course of the present epizootic, like that of the majority on record, 

 shows clearly enough that no such condition is essential to its develop- 

 ment. 



Bain-fall and hnmldity. — The rain-fall for September, 1872, at Toronto, 

 was but 2.528 inches, as compared with 1.290 inches in September, 1871, 

 and 6.794 inches in September, 1870. The rainy days were sixteen in 

 1872, against eight in 1871, and seventeen in 1861. The total rain in 

 September, 1872, was 1 inch below the average of the twenty-eight pre- 

 ceding years. 



The average relative humidity of the air, in Toronto, in September, 

 1872, was 78, against 71 for the same month of the previous year. 

 Though greater than in the former year, this is by no means an excess 



