SlonthJy Meteorological Register, at the Provincial Magnetical Observatory, Toronto, Canada West.— September, 1853. 



Latitude 43 dec/. 39/Fjhwi. Jfiirth. Longitude, 79 deg. 21 min. West. Elevation above Lake Ontario : 108 feet. 







Barom. at tern, of 32 



deg. 



Temperature of lite air. 



Tension of Vapour. 



Humidil 



r of Ai 





Wind. 



Rain S'nw 

 in in 



S 



6 A. M. 



2 P. 31. 



10 P.M. 



MEAN. 



6a.m.:2p..m. 



10p.m. 



m'n. 



0A.M.2r.M. 10p.m. 



m'k 



j A.M. 



2 P.M. 



10 p.m. 



m'n. 



6 A. M. 



2 P. M. j 



10 p. m.m'n v 



Inch. 1 



nclj. 













o o 



o 



o 



1 1 

















j lliles 







a 



1 



29.771 



29.730 



29.790 ■ 



29.7S3 



60.7 !73.3 



60.4 



65.97 



400 0.498 0.412 



0.481 



S9 



63 



80 



75 



NtE 



E s e! 



N E b E 4.27 



_ . 





el 



2 



S14 



.742 



.707 



.752 



60.8 77.8 



67.6 



69.87 



.3881 .664) .453 



.528 



69 



72 



69 



73 



N bE 



SEliE 



Calm 



2 31 



_ _ 





a 



3 



.722 



.697 



.6S9 



.711 



85.0 80S 



65.9 



70.97 



,545 ! .726 .54S 



.620 



91 



71 



S3 



84 



Calm 



S b E 



Calm 



1 96 



_ . 





c 



4 



.672 



.603 







61.1 SO 1 







.487 .570 





•92 



57 







Calm 



3 E bS 





9 18 



_ _ 





b 



D 



.633 



.577 



.514 



.579 



86. 1 85 4 



73 3 



75 22 



.576 1 .690 s .571 



.620 



93 



53 



70 



74 



E 1)N 



S 



Calm 



451 



[nap 





<! 



6 



.574 



.462 



.463 



.502 



69.8 78.4 



62.8 



70.35 



.619] .815 .464 



.633 



88 



S6 



S3 



86 



Calm 



SE bE 



N 



4.57 



1 .990 





c 



7 



.510 



.600 



.714 



.617 



60.5 186.2 



51.7 



59.40, 



.456! .341 .230 



.352 



SS 



55 



77 



72 



N N W 



NNW 



NNW 



6 70 



_ _ 





b 



S 



.791 



-SI I 



.841 



.816 



53.1 69.0 



5S.0 



80.65 1 



.322 .423: .325 



.358 



82 



62 



69 



70 



N N W 



SbE 



N bE 



4 IS 



_ _ 





e 



£ 



.b32 



.730 



.648 



.737 



53-5 



70.7 



63.8 



63.37 



.345 1 .445' .447 



.428 



86 



61 



78 



73 



NEbN 



E SE 



S S W 





[nap 





c 



1C 



.75S 



.755 



.S57 



.798 



43.3 



66.2 



49.1 



54.88 



.2561 .317 .269 



.277 



»S3 



51 



78 



68 



Calm 



WbN 



Calm 



4 <>S 



_ _ 





c 



11 



.870 



.873 







49.3 



62.9 







.242 .293! 





70 



54 







NNW 



S b W 





1 65 



_ _ 





b 



12 



.904 



.843 



.762 



.830 



|39.3 64.9 



55.5 



55.93 



.179; .348 .29S 



.305 



73 



58 



69 



68 



Calm 



SE bS 



Calm 



1 43 



_ _ 





a 



13 



.717 



.623 



.569 



.621 



50.0 68.2 



61.9 



60.83 



.298 .437 .415 



.406 



84 



70 



77 



7S 



Calm 



S b W 



Calm 



2 33 



0.250 





b 



14 



.494 



.263 



.082 



.278 



57.1 



61.1 



58.7 



59.80 



.422 .493 .4S0 



.462 



92 



94 



99 



92 



NE 



ENE 



N NE 



9 SO 



1 .895 





d 



15 



.274 



.383 



.542 



. .411 



58,1 



67.1 



56.9 



61.28 



.435 .401 .327 



.33b 



92 



62 



72 



76 



NWbW 



N W 



Calm 



661 



_ _ 





b 



lb 



.632 



.610 



.516 



.579 



50.4 



68.4 



64.3 



61.22 



.303 .514 .534 



.460 



S4 



S2 



91 



S3 



Calm 



E 



E S E 



2.41 



0.040 





s. 



17 



.493 



.451 



.437 



.473 



58.8 



77,3 



70.6 



67.52 



.430 .75 1[ .655 



.589 



S3 



82 



90 



87 



Calm 



S E 



Calm 



1.66 



[nap 





e 



IS 



.503 



.4S2 







67.2 



75.7 







.587 



.679 





91 



79 







EbN 



S E 





3.70 



Inap 





G 



19 



.368 



.472 



.558 



.473 



69.8 



64 



60.3 



64.52 



.611 



.517, .48-1 



.542 



87 



94 



95 



91 



S 



SWbW 



Calm 



4 52 



350 





e 



20 



.620 



.553 



.552 



.573 



50.3 



65 2 



51.0 



58 08 



.317 



.473! .344 



.382 



89 



78 



94 



87 



SSVV 



S E 



W 



3 00 



0.115 





b 



21 



.558 



.587 



.630 



.593 



49.2 



58.1 



52.8 



53.95 



3 i- 1 



.390, .323 



.340 



88 



S3 



82 



S3 



WbN 



N W 



N W 



7 67 



_ . 





d 



22 



.654 



.630 



.642 



.639 



49.5 



56.0 



47.2 



50.47 



.292 



.272: .268 



.377 



S3 



62 



84 



77 



NNW 



NNE 



Sb W 



2 6^ 







b 



2i 



.625 



.580 



.554 



.535 



47.2 



68.6 



57.3 



57.43 



.278 



.463 1 .420 



.391 



87 



73 



90 



84 



Calm 



SbE 



S WbS 



2 31 







b 



24 



.422 



.575 



.801 



.614 



60.5 



62.1 



;46.4 



55.62 



.446 



.276 .214 



.310 



87 



51 



63 



09 



S Wb S 



N W 



NWbN 



S4f 







b 



25 



.903 



.905 







37 8 



54.2 







.172 



.289 





78 



70 







Calm 



Sbff 





3 0? 







b 



26 



1 .933 



.787 



.723 



.S01 



47.1 



59.4 



51.0 



53.32 



.252 



.340! .321 



.313 



79 



69 



S7 



73 



N EbN 



E 



ENE 



5 94 



[nap 





b 



27 



.720 



.590 



.493 



.590 



43.1 



48 3 



42.7 



48-52 



.291 



.307; .271 



.234 



8S 



92 



1.00 



94 



ENE 



EbN 



NNE 



7 7' 



0.500 





* 



2S 



.554 



.665 



.S51 



.705 



42,3 



53.5 



41.6 



45.92 



.2o2 



.1971 -133 



.206 



94 



49 



75 



69 



N 



N b W 



N N W 



8 45 



_ _ 





b 



29 



.973 



.943 



.900 



.939 



137.4 



51.1 



36.1 



42.30 



.165 



.227 -184 



.188 



74 



62 



87 



71 



WbS 



S SE 



EbN 



2 91 



- - 





b 



30 

 M 



.83.0 



.707 

 29 632 



.599 



.694 



37.0 526 



42.7 

 55 80 



45.77 



.207 



.270 .214 



.236 



95 



69 



79 



73 



N N E 



E 



NNE 



2.1C 









29.661 



29.641 



29.642 



53.40 



65 68 



58.81 



0.363 10.447 '0.382 



0.39S 



S6 



1 70 



82 



1 79 



Mi's 3.30 Mi's 6.43"MI's 3.26 



4.30 ! 5.14C 



' 



Sum of the Atmospheric Current, in miles, resolved into the four Cardinal 

 directions. 



North, J513.ll 5 West, 804 37 ; South, 75S.52; East, 872.38. 

 Mean direction ot the wind, North. 

 Mean velocily of the wind - - 4.30 miles per hour. 

 Maximum velocity- - - - - 20 7 miles per hour/rom 10 to 1 1 p.m. on 14ih 



Most windy. day ------ 14ih: Mean velocity, 9.80 miles per hour. 



Least windy day ----- 12th Mean velocity, 1.43 ditto. 



Raining 479 hours on 12 days. 



14th. — The velocity of the Wind from lOh.Om., to lOh. 10m. p.m., was at 

 lie rate of" 40.2 miles per hour, and from 10h. 10m,, to 101). 20m. p.m., at the 

 rate of !6.S miles per hour, being the greatest velocity ever recorded at this 

 Observatory. 



Highest Barometer - - 29 999, at S A.M., on 29;h. \ Monthly range: 

 Lowest Barometer - -2^.946", at 1020 P.M.,on 14th. \ 1.053 inches. 



Highest regist'd Temp. - S5.5, at — P.M-,on 5th / Monthly range. 

 Lowest regisi'd Temp. - 33 9, at — A.M., on 30tli \ 51.6 



Mean Maximum Temperature - - - - 67.87 \ Mean daily range: 

 Mean Minimum Thermometer- - - - - 49 45 ) ' 18.42 



Greatest-daily range ----- 32 2 from P. M. 24lh to A. M. of 25lh. 

 Warmest day - - 5th - - - Mean Temperature - 75.22 ( Difference 

 Coldest day - - - 29th - - - Mean Temperature - 42 30 $ 32.92 



The "Means" are derived from six observations daily, viz., at 6 and 8 

 A. M., and 2, 4, 10 and 12, P. M. 



Aurora observed on 7 nights. Possible to see Aurora on 19 nights. Im- 

 possible Lr see Aurora on 11 nights. 



The column headed " Magnet" is an attempt to distinguish the character 

 of each day, as regards the frequency or extent of the fluctuations of the 

 Magnetic declination, indicated by the self-registering instruments at Toronto. 

 The classification is, to some extent, arbitrary, and may require future modi- 

 fication, but has been found tolerably definite as far as applied. It is as follows: 



(a) A marked absence of Magnelical disturbance. 



(J>) Unimportant movements, not to be called disturbance. 



METEOROLOGICAL OBSERVATIONS. 

 During the Storm of llth August, 1853. 



Magnetic Observatory, Toronto. 

 The Barometer has been falling gradually from 29.922 inches on the 12th, 

 at 8 a.m., to 29.082 at 10 p.m., on the 14ih. The win! on the 12th and 13lh 

 &ad been mostly calm, or W. and S.W., the motion of the clouds being from 

 W. and S.W., and increasing in extent till 8 a.m. on tha 13th. when the sky 

 was overcast, and continued so, the humidity, also, increasing till it reached 

 .99 at 10 p.m. on the 14ih. The wind changed on the morning of the 14th, 

 about midnight, to N.N.E , and rain fell during the night 



Th 14ib was densely clouded, and there was steady rain aM day, the wind 

 -creeping round to the'N'., and the velocity increasing from 1.6 miles at 6 a.m. 

 to 22 at 10 p.m. At this lime the violence of the storm incieascd the wind 

 N.N.E. j Barometer, 29.082, Thermometer. 58.7° ,Humid:lv 99 at 10.12 p,m, 



G 



(c) Marked disturbance — whether shewn by frequency or amount of 

 deviation from the normal curve — but of no great importance. „ 



(d) A greater degree of disturbance — but not of long continuance. 



(e) Considerable disturbance — lasting more or less the whole day. 

 (/') A Magnelical disturbance of the first class. 



The day is reckoned from noon to noon. If two letters are placed, the first 

 applies to the earlier, the latter to the later part of the trace. Although the 

 Declination is particularly referred to, it rarely happen* that the same terms 

 are not applicable to the changes of the Horizontal Force also. 



Comparative Table ftor Septeaufoer. 







Tern pel 



alure. 







lain. 



Snow. 



Wind 



Year. 



Mean. 



Max. 

 obs'rvd 



Min. 

 obs'rvdj 



Range. 



Mean 





D'ys 



inches. 



Dy'slnch. 



Velocily 









o 



~ 



o 



1 







Miles. 



1S40 



54.0 



70.2 



29.4 



40.3 



4! 



1.3S0 



-- 



_ 



1S41 



61.3 



79-9 



37.5 



42.4 



9 



3.310 



- 







1842 



55 7 



S3. 5 



2S.3 



55.2 



12! 



6.160 



- 



._ 



1S43 



59.1 



S7.S 



33.1 



■54.7 



10 



9.760 



- 



0.571 h 



1S44 



5S.6 



SI. 5 



20.6 



51 9 



4 



imperfect 



- 



261b 



1S45 



56.0 



78.8 



35.3 



43 5 



10 



6.245 



-- 



0341b 



1S45 



63.6 



84.0 



39.0 



45 



11 



4.565 



-- 



33il> 



IS 17 



55.6 



74.8 



33. 1 



35.7 



15 



6.655 



- 



0.33, b 



1843 



54.2 



80.9 



29.5 



51.4 



11 



3.115 



- 



5 Sim 



1849 



53.2 



80 6 



33.5 



47.1 



9 



1.433 



- 



4 23 m 



1S50 



55.5 



76.0 



31.7 



44.3 



11 



1.735 



-- 



4.73m 



1S51 



60.0 



S6.3 



33.4 



529 



9 1 



2.655 



- 



54.5m 



1S52 



57.5 



SI. 8 



36. 1 



45.7 



10 



3.630 



-- 



4.60m 



1S53 



53.8 



S5.4 



36 1 



49,3 



12 



5.140 



- 



4,30m 



Mean 



57 79 



SO. 82 



1 33.61 



47.21 



10.2 



! 301 







4.S6 M'l 



Barometer 23.992; from 10 h. lo 10 h. 10 m., the wind had traversed 6,7 

 miles, or at the rale of 40 2 miles per hour ; in the previous half hour its rate 

 was 13 4 miles per hour. 



AtlOh. 20m. Barometer 23 916, ( from lOh. 10m. to lOh. 20m., ihe wind 

 bad traversed 7.S miles, being al the rale of 46 S miles per hour. A sudden 

 lull now look place the Baromn'er beginning lo rise. 



At lOh. 3.3m . Barometer 2) 023, rale ol wind for this 10m , being 65. 

 miles par hour. The wind now gradually veered round by S-, and al l> 

 p.m. i: had sot round to N. W. byN. having changed through £ of the circle. 

 «■ At llh. Barometer 23 1 12 velocity of wind from 10h.30;n. to 11 p.m.. was 

 10.6 mi'es per hour, at 10h. 11m. rain ceased, and the storm was over, the 

 Barometer continued to rise steadily. 



The quantity of rain which fell during the day was 1.305 incites on the 

 surface. 



