MAG N E TIC S V R V E V <> !•' I' I] \ N SYLVAN] L 



21 



Auff. 7 



Magnetic Observatory, Toronto, Canada.— Continued. 



Time. 



L0 h 34 m A.M. 



Dip. 



No. 1 

 No. 3 



75° 12'. 

 75 03.3 



I'iibr. 



78.0 



Dip when loaded. 



1-2° 30'.9 

 16 50.1 



Mean . 



..' total 



75° 13'.6 I 1.0985 

 75 13.3 1.1249 



75 13.5 



1.111- 



Oswego, N. Y. — On river bank, 120 yards above bridge on left bank, under three 

 grown together. 



Date. 



Time. 



Dip. 



Auir. 8 



4" P.M. 



No. 1 



No. 3 



75° 05'. 9 

 74 56.7 



Temp. Fahr. Dip when loaded. Dip reduced. Relative total 

 6 £ intensity. 



75°. 7 



75.7 



15° 20'.2 75° 07'.5 ! 1.1159 

 19 57.4 I 75 06.7 1.1453 



Mean . 



75 07.1 



1.1306 



Cloudy, cumulus. 



Ogdensburgh, N. Y. — At Mile Point, under small pine tree, on river bank. 



Time. 



Needle. 



Temp. Fahr. 



No. of aeries. 



No. of 

 vibrations. 



Time of 

 10 vibrations 



Corr'd. 



Hori / 

 intensity 

 Phil. : 



Aug. 9 5 h 27 m P.M. 

 " 6 17 " 



Cylinder 

 Bar 



77°.5 

 70.4 



500 

 400 



39 s . 550 

 41.585 



39".514 

 tl.505 



0.7877 



0.7 '.i 15 



Mean 



ii 7896 



Date. 



Aug. 9 



No. 1 

 No. 3 



Dip. 



Temp. Fahr. 



76 05'.0 

 75 58.5 



TT 5 

 7T.0 



Dip when loaded. 



13° 57 '.0 

 18 23.7 



Dip rednced. 

 i 



76° or,'. i; 

 76 08.5 



Relative tot il 

 intensity, 



1.0976 

 L.1221 



Mean 



76 07 i, 



1. 1098 



