IK®H STEAM SHIP 
eSE Af 
Souti, Pola-rity [-wea-i] 
IvTacftiHic chamcfer of' tfie topstdes, the positions of the sevefxd. Compasses employed , and the direction and amount of Ships Force. /The arrows denotmo Ships force are proportionaUy tb'awn to scale) 
Phd Trans MJDlXCLX. Plate SS . 
{Approximate lurats ofMadune/y within these dotted hnes .] 
i ^ 
o • ® 
> rw 
N 
11 
I- 
Til 
o-jio 
0-U5 

■riSs +22 
o ♦lori 
0-85 ' 
'+32 *•■■■. •■■*39e,ts0 
0+35 
®+50 
,/ • +26 . +39 
lo'« 
4-29 +32 -32 *+32 
777-4,33. ♦30— - - •; 
Nortli Pola. rit 
-M'l • • -U3 
y 
Slielcli of T lie S.S.Ga'eat E astern, sliewng the external neutral Magnetic Lines, or, the separation Lctween the Horth & South polari^ of the Hull. 
Note. Thr broad coniimiou.-i. and non -continuous Hues, .September IS, 1859, cut Deptford 
The small dotted lines, (uv approseimutely in ITovemher 1857, prior to louunchin^. ^ " io •^o — sii — 50 
U>ark lines and figures, Port side- of tlie Ship. Scale of feet 
I Light ditto , Starboard 
lOo 
eviatiou of the Conip.as.s observations with a dot .which denotes the position i , are those made in 1859) 
m deyirrs ' « encircled . 1857^ 
EcLSt Deviation. . Deviation. 
Direction, of IfeeL and Head while. buiLdui^ S. 23° 50 E. Mag^ 
- at Deptford S.46 0 E. ■ 
