208 
PROFESSOR KEELY’S MAGNETICAL OBSERVATIONS. 
Table IV. 
(1-) 
station. 
(2.) 
Needle. 
(3.) 
Logarithms cor- 
reeted for change 
of force in L(2). 
(4.) 
Factors con- 
necting the 
numbers cor- 
responding to 
the logarithms 
(in col. 3) for 
L(l) andL(2). 
(5.) 
Logarithms cor- 
rected for factor 
connecting L(l) 
and L(2). 
(6.) 
Logarithms re- 
duced to Water- 
ville as unit. 
Forces to 
Waterville 
unit. 
(8.) 
Means. 
Halifax 
L(l) 
T-9310218 
1*04387 
1*9311781 
1*9913028 
*98017 
OC 
0 
OC 
O' 
Halifax 
L(2) 
T-9496683 
T*9495120 
1*9918746 
•98146 
Hiltz’s 
L(l) 
T-9307381 
1*9308944 
1*9910191 
•97953 
•97953 
Windsor 
L(l) 
T'9309837 
1*9311400 
1*9912647 
•98009 
•98009 
Kentville 
L(l) 
T-9320107 
1*9321670 
1*9922917 
GO 
0 ^ 
•98241 
Bridgetown 
L(l) 
T-9323155 
1*9324718 
1*9925965 
•98310 
•98310 
Annapolis 
L(l) 
T-9325703 
1*9327266 
1*9928513 
*98367 
1 
Annapolis 
L(2) 
T-9509458 
1*04322 
1*9507895 
T-9931521 
•98436 
1 ^98401 
St. John 
L(l) 
T'9348103 
1*9349666 
1*9950913 
•98876 
•98876 
Fredericton 
L(l) 
T-9364098 
1*9365661 
1*9966908 
•99241 
•99241 
Woodstock ri 
L(l) 
T-9377287 
1*9378850 
1*9980097 
•99543 
Woodstock 
L(2) 
T-9555509 
1*04189 
1*9553946 
1*9977572 
•99485 
\ -99514 
Riviere des Chutes... 
L(l) 
T-9381584 
1*9383147 
1*9984394 
*99641 
Riviere des Chutes... 
L(2) 
T-9561010 
1*04218 
1*9559447 
1*9983073 
*99611 
1 -99626 
Grand Falls 
L(l) 
T-9379492 
1*9381055 
1*9982302 
*99593 
I 
Grand Falls 
L(2) 
T-9562688 
1*04308 
1*9561125 
1*9984751 
•99649 
^ -99621 
Grand River 
L(l) 
T-9392578 
1*9394141 
1*9995388 
•99894 
1 ...... 
Grand River 
L(2) 
T-9367205 
1*04102 
1*9565642 
1*9989268 
•99753 
J -99823 
Madawaska 
L(l) 
T-9395932 
1*9397495 
1*9998742 
•99971 
Madawaska 
L(2) 
T-9574700 
1*04202 
1*9573137 
1*9996763 
•99925 
1 -99948 
Waterville 
L(l) 
1*9398753 
10* 
1- 
\ 1*0000 
Waterville 
L(2) 
1*9576374 
10* 
1- 
J 
Logarithmic fac-l 
L(l) 
-P *0001563 
-P *0601247 
tors used in the > 
above changes. J 
L(2) 
—*0001563 
-P *0423626 
Observations with the Unifilar. 
At Halifax, Kentville, Annapolis and Fredericton, I made observations with the 
unifilar ; the magnet vibrated, and used also as a deflector, was marked H(10) and 
was a cylinder 2 953 inches in length ; the deflected magnet was marked 1(14), a 
cylinder 2'414 inches in length. 
The magnet 11(10) being suspended, — by turning the telescope through arcs of 
three or four degrees, and applying a correction for torsion, observed at the same 
times, — I obtained on the 27th of March for a scale division 10'’0999, and on the 
29th 10'’0963 ; the value used is lO'T. 
Table V. exhibits the results of observations to determine the temperature coeffi- 
