628 
STAFF COMMANDER E. W. CREAK ON THE DEVIATIONS OF THE 
Table I.—Values of the Constant Parameters P and c, Q and f at Standard 
Compass Positions in Her Majesty’s Ships (continued). 
Geographical 
position. 
Date of 
observation. 
Original 
P- 
Corrected 
P. 
c 
y tan 9 
in England, 
C. 
Original 
Q. 
Corrected 
Q. 
/ 
tan 9 
in England. 
/. 
1 
Armour-plati 
id ships (contini 
lied). 
Northampton. 
—Built S. 6° 
E. Distance of standard from stern 83 feet, from iron mast 22 feet. 
Steepness . 
1 
xi. 79 
+ •345 
" 
-•060 j 
-•021 
-•008 
-•002 
Spithead . . 
18 
xii. 79 
+ •050 
-3° 25'/ 
-•002 
27V N. 62|° W. . 
23 
i. 80 
+ •060 
-•053 
St. Lucia . . . 
20 
ii. 80 
+ •041 
-•073 
Bermuda . 
8 
v. 80 
+ •082 
-•090 
Halifax, N.S. . 
27 
vi. 80 
+ •024 
-•037 
Rimouski, River 
St. Lawrence . 
21 viii. 80 
+ •046 
-•046 
Halifax, N.S. . 
1 
x. 80 
+ •032 
-•057 
Dominica . 
22 
i. 81 
+ •046 
-•004 
Nelson. —Built S. 21° E. 
Distance of standard from stern 83 feet, from iron mast 23 feet. 
Steerness . . . 
28 
vii. 81 
+ •281 
-•043 j 
-•014 
-•060 
Plymouth . 
28 
ix. 81 
+ •032 
-2° 30'/ 
+ •027 
Madeira . . 
11 
x. 81 
+ •048 
+ •016 
Simon’s Bay, C. 
G. Hope. . . 
14 
xi. 81 
+ •048 
+ •040 
Iron ships cased with wood. 
Active. —Built N. 33° E. 
Distance of standard from stern 69 feet, from iron mast 16g feet. 
Portsmouth . 
13 
x. 73 
-•541 
-•120 
+ •039 j 
+ •015 
+ •024 
. • 
+ •010 1 
+ •004 
?? 
15 
x. 73 
-•120 
+ 2° 15'/ 
-•019 
+ 0° 35'/ 
Simon’s Bay, C. 
Good Hope . 
x. 74 
-•120 
-•019 
D 
x. 75 
-•094 
, , 
-•023 
xi. 76 
-•096 
-•006 
Shah.— Built S. 70° E. 
Distance of standard from 
stern 70 feet, from iron mast 17^ feet. 
Spithead . 
8 
vii. 76 
+ •003 
•• 
-■012 I 
-•005 
+ •173 
>5 ... 
4 
x. 76 
+ •009 
-0° 42'/ 
+ •083 
Esquimault,Van- 
couver’s Island. 
x. 77 
-•017 
-•067 
Coquimbo . 
8 
iii. 78 
-•017 
-•002 
Panama 
11 
v. 78 
-•010 
+ •002 
Raleigh.— Built S. 51° E. 
Distance of standard from stern 654 feet, from iron mast 8f feet. 
Sheerness . 
6 
vi. 74 
+ •195 
-•017 j 
-•006 
+ •203 
?? ... 
8 
vi. 74 
+ •029 
-1° 0' / 
+ •054 
Spithead . . . 
18 
ix. 74 
+ •043 
+ •003 
Simon’s Bay, C. 
Good Hope . 
iii. 75 
+ •043 
+ •026 
Bombay . . . 
29 
x. 75 
-•006 
-•010 
Spithead . . . 
14 
vi. 76 
+ •057 
+ •001 
_ 
t, 
