283 



SCIENTIFIC INTELLIGENCE. 



[1854. 



Monthly Meteorological Register, at tlie Provincial Magnctical Observatory 9 Toronto, Canada West-— April, 1S54* 



Latitude, 43 cleg. 39.4 min. North. Longitude, 79 deg. 21. min. West. Elevation above Lake Ontario, 108 feet. 







Barom. at tern, of S 



2 deg. 



Tern, of the Air. 



Tension of Vapour. 



Humidity of Air. 



Wind. 





























Rain 



in 

 Inch. 



Snow 



a 

 C 

 bO 







10 





6 



o 



10 





6 



2 



10 





6 



2 



10 











Mean 



in 



Inch. 



P 

 1 



6 A.M. 



2 P.M. 



P.M 



Mean. 



A.M. 



o 

 36-6 



P.M. 



P.M. 



m'n. 



- o 

 32-50 



A.M. 



0-194 



P.M. 



0-153 



P.M. 



0-12S 



m'n 

 0-155 



A.M. 



•90 



P.M. 



•73 



P.M. 



•86 



m'n. 

 •83 



6 A.M. 



2 p.m. 



10 p.m. 



Vel'y 







h 



29-157 



29-418 



29-683 



29-447 



o 



36-0 







26-0 



VVN W 



WbN 



NWbW 



12-98 



0-2 



h 



9 



29-885 



29-986 











22-3 



32-7 











•100 



•163 



— 



_ 



86 



88 



— 



— 



N N W 



NWbW 



— 



6-26 







h 





30-157 



50-060 



•993 



30-062 



29-3 



39-6 



34-5 



35-03 



•140 



•147 



•174 



•158 



87 



61 



88 



78 



iV S W 



SbW 



Calm 



6-87 









4 



29-8S( 



29-886 



•87C 



29-877 



34-1 



50-3 



34-8 



40-27 



■170 



•239 



•176 



■204 



91 



66 



88 



82 



3W bW 



SSE 



S E 



3-08 







b 



fi 



•827 



•698 



•612 



•704 



36-3 



53-3 



42-4 



44-65 



■190 



•348 



•242 



•259 



92 



87 



90 



88 



Calm 



SW 



Calm 



3-70 







b 



fi 



•451 



■278 



•483 



•407 



41-6 



60-3 



42-5 



47-00 



■236 



•340 



■2UI 



■250 



91 



66 



/ i 



77 



Calm 



SIT 



N N W 



11-23 



0-040 





d 



7 



■820 



■908 



•925 



•893 



27-3 



40-2 



33-4 



33-53 



•121 



•192 



•166 



•162 



80 



78 



87 



83 



N 



S 



ENE 



5-59 







n. 



8 



•808 



■641 



•616 



•674 



35-2 



42-7 



46-0 



41 -83 



.•188 



■204 



•287 



■233 



92 



74 



93 



87 



E 



E 



Wb-S 



6-58 



0-185 



... 



fii 



SI 



•610 



■472 











37-7 



40-2 











•207 



■208 



— 







91 



84 



— 



— 



NE 



EbS 



— 



7-02 



0-840 





f 



10 



•239 



•360 



•548 



■394 



36-6 



39-1 



35-5 



37-3? 



•204 



•205 



•184 



•199 



95 



87 



89 



90 



NEbE 



N HON 



N N W 



8-49 



0-105 





li 



11 



■743 



■725 



■708 



•720 



30-2 



41-3 



33-2 



36-20 



•147 



•171 



■107 



•170 



88 



66 



88 



81 



NbE 



s s w 



SSW 



5-23 







a, 



1?, 



■744 



■707 



•719 



•719 



34-9 



53-4 



11-6 



43-7? 



•184 



■240 



•209 



•206 



91 



60 



81 



74 



Calm 



s 



N 



0-08 







a 



13 



■866 



■977 



30-060 



■977 



34-8 



37-3 



27-5 



33-37 



■171 



•176 



•133 



■160 



85 



80 



87 



84 



NNE 



ESE 



ESE 



5-57 

 12-24 

 10-23 







a 



1 1 

 15 



•721 



■654 



29-674 



•674 



33-0 



37-8 



14-1 



Rfi-1? 



■155 



■137 



•172 



•151 



82 



60 



88 



74 



E 



E 



ENE 







a, 



16 



•702 



•712 











31-7 



39-5 











•148 



■169 









83 



70 



— 



— 



ENE 



ESE 



— 



10-79 







b 



17 



•668 



■619 



■621 



•633 



34-8 



43-7 



30-9 



37-10 



•170 



•209 



■137 



■166 



88 



74 



79 



76 



NE 



SEbE 



SbW 



5-58 







r. 



18 



•61C 



•574 



■567 



■587 



36 1 



51 -1 



11-4 



44-07 



■147 



■178 



•176 



•158 



69 



48 



68 



56 



SWbS 



S b W 



SSW 



4-38 



9-060 





0. 



IS 



•538 



■442 



•460 



•476 



36-0 



45-7 



39-1 



42-30 



•155 



■248 



•207 



•223 



74 



82 



87 



83 



SSW 



EbN 



Calm 



2-59 



0-070 





d 



20 



■419 



■448 



•530 



•469 



40-6 



50-4 



39--8 



43-60 



•228 



•246 



•196 



•223 



91 



68 



81 



80 



NEbE 



SbW 



EbN 



3-61 







d 



•71 



•603 



•563 



■490 



•554 



36-7 



61-0 



16-3 



48-35 



■204 



•199 



•275 



■2 is 



95 



37 



88 



76 



NE 



ESE 



ENE 



5-28 



0-020 





c 



0,9, 



■406 



■311 



•361 



•359 



43-4 



46-0 



+8-8- 



46-12 



■249 



•270 



•330 



■283 



90 



88 



97 



92 



ENE 



ENE 



NNE 



6-64 



0-185 





f 



BR 



•491 



■607 











47-5 



61-9 









■298 



•1 95 



— 







92 



36 



— 



— 



NNE 



N b W 



— 



8-13 







n 



24 



•756 



-649 



•557 



•640 



41-4 



57-1 



51-7 



50-98 



■157 



•245 



•317 



■247 



61 



54 



84 



67 



NNE 



SEbS 



SbW 



2-81 







a 



25 



•509 



■434 



•35R 



•426 



45-4 



65-1 



t-R-S 



54-15 



■249 



•266 



•307 



■202 



83 



43 



91 



73 



SSW 



SEbE 



NEbE 



3-93 



J-630 



... 



c 



26 



•255 



■090 



•196 



■173 



46-0 



53-9 



48-2 



50-23 



■287 



•352 



■308 



•327 



94 



87 



93 



91 



NEbE 



SEbE 



N 



6-85 



1-375 



2-0 



c 



27 



•388 



■576 



■732 



•581 



33-0 



33.3 



35-2 



33-63 



•175 



•152 



•180 



•166 



94 



79 



88 



87 



NEbN 



NEbN 



NEbN 



11-25 





0-5 



h 



?8 



■940 



•996 



30 023 



•995 



29-9 



420 



15-7 



36-48 



•141 



■144 



•158 



•144 



84 



55 



76 



68 



NNE 



NE 



NbE 



10-30 







h 



29 



•995 



■881 



29-780 



■869 





39-0 



14-5 



37-3'? 



•197 



■1 80 



■188 



•194 



87 



79 



95 



88 



NEbN 



NE 



NNE 



8-21 



0-070 



[nap. 



1) 



R0 

 M 



•676 



■600 



29-648 



29-637~9 



37-1 

 36-29 



44-5 





41-04 



•205 

 0"487 



•240 



— 



— 



94 

 86 



83 



69 



~W 



80 



NbE 



SWbS 



Miles. 

 5-18 



4-18 



Miles 

 6-82 



0-105 

 1.685 







Miles. 

 6-95 



Miles. 

 8-64 







29-046 



29-621 



46-65 



38-82 



0-219 



0-209 



0-207 



2-7 



Highest Barometer.. 30-233, at 6.30 a.m. on 14th "I Monthly range: 

 Lowest Barometer... 29-045, at 4 p.m. on 26th j 1-188 inches. 

 Highest temperature.. 65°-l, at 2 p.m. on 25th "1 Monthly range : 

 Lowest temperature... 20°-2, at a.m. on 2nd/ 44°-9. 



Mean Maximum Thermometer 47°-82 "I Mean daily range: 



Mean Minimum Thermometer 30°-69/ 17°-13. 



Greatest daily range. 85°-4, from p.m. 6th to a.m. of 7th. 



Warmest day 25th. Mean temperature 54° -1 5 ^ Difference, 



Coldest day 1st. Mean temperature 32°-50j 21°-65. 



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

 directions. 

 North. West, South. East. 



2083-06 854-00 1030-89 2261.73 



Mean direction of the Wind E 37° N. 

 Mean velocity of the Wind... 6-82 miles per hour. 



Maximum velocity 20-2 miles per hour, from 3 to 4 p.m. on 1st. 



Most windy day 1st; Mean velocity... 12-98 miles per hour. 



Least windy day. 19th; Mean velocity... 2-59, ditto. 



Plaining on 12 days. Plaining 41 -8 hours. Depth, 2-685 inches. 

 Snowing on 4 days. Snowing 8-9 hours. Depth, 2-7 inches. 

 Thunderstorms occurred on the 8th, 9th, 21st, 25th and 26th. 

 Aurora observed on 8 nights. 

 Possible to see Aurora on 15 nights. 

 Impossible to see Aurora on 15 nights. 

 5th. Frogs heard in the river Humber. 

 6th. Butterfly seen in Observatory grounds. 

 8th. Toronto Bay clear of ice. 



9th. Flocks of wild geese passing over the Observatory from South 

 towards North. 

 10th. Splendid Aurora from 9 p.m. of 10th to 3 a.m. of 11th, during 

 which the magnetic disturbance much surpassed that which occur- 

 red during the great Aurora ofthe 27th ult. 



14th, Swallows observed. 



25th. Wild pigeons numerous, and passing northward. 



26th. Thunderstorm from 3.55 to 7.45 p.m., during which very heavy 

 rain and hailstones fully f of an inch in diameter fell, and a very 

 beautiful and perfect double rainbow with supernumary bands 

 was formed. 



Comparative Table for April. 





Temperature. 



l 



Mil. 



Sr 



ow. 



Wind- 

 Mean 

 Vel'y. 







Mean. 



Max. 

 obs'vd. 



Min. 

 obs'vd. 







25-3 



lange 



D's- 

 14 



Inch. 



D'ys 



Inch. 





1840 



o 



42-7 



o 



C5-9 



o 



40-6 



3-420 



2 



o.2 







1841 



39-2 



02-9 



22-1 



40-8 



3 



1-370 



3 



Jz; M 



0-51 



ft. 



1842 



43-1 



89 -5 



21-6 



67-9 



8 



3-740 



2 



tf 



0-57 



ft. 



1843 



40-9 



70-0 



15-1 



54-9 



7 



3-185 



O 



0-1 



0-46 



ft. 



1844 



47-5- 



74-5 



17-2 



57-3 



10 



1-515 



1 



Inap. 



0-24 



ft. 



1845 



42-1 



66-0 



14-8 



51-2 



11 



3-290 



4 



1-5 



1-00 



ft. 



1846 



44-0 



79-4 



24-4 



55-0 



10 



1-300 



2 



1-3 



0-55 



ft. 



1847 



39-2 



65-6 



8-4 



57-2 



8 



2-870 



2 



40 



0-59 



ft. 



1848 



41-3 



65-4 



26-5 



38-9 



5 



1 -455 



1 



0-5 



4-89 



Miles. 



1849 



39-0 



70-9 



23-2 



47-7 



10 



2-655 



2 



1-7 



7-50 



Miles. 



1850 



37-9 



63-2 



18-2 



45-0 



7 



4-720 



2 



1-1 



7-64 



Miles. 



1851 



41-3 



59-2 



25-8 



33-4 



11 



2-295 



3 



1-2 



8-07 



Miles. 



1852 



38-2 



53-8 



. 19-8 



34-0 



6 



1-990 



4 



9-4 



6-68 



Miles. 



1853 



41-9 



65-7 



27-0 



38-7 



10 



2-625 



1 



1-0 



5-20 



Miles. 



1854 



41-0 



65-1 



22-3 



42-8 



12 



2-685 

 2-608 



4 



2-7 



0-82 

 "CF56 



Miles. 





ft. 



M'n. 



41.29 



67-81 



20-78 



47-03 8-8 



2-4 



2-04 



6-69 



Miles. 



