Difterences of Monthly Means of Pressure during 1897 from the Averages (millims.). 
SURFACE WATERS OF THE NORTH ATLANTIC OCEAN, 
d 
r-l (M 
oc 
LO O 0-1 CO Ol lO 01 X) 
30 IP IP 
OTO'^O'^^POO 
CM OT 
t' 
1^ CO 
CM o O CM CM O O 1 
1 1 CO to 
1 t-hX^XCOXCOCM 
1 o o 
o 
1 1 
1 
1 1 + 1 1 1 + + 
+ + + 
+ 4* H" ! 1 1 1 1 
4* 4“ 
1 
O -rf* 
o 
O'! CO CO LO 01 'Xr O CO 
X O CO 
LO CO 
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1 * * 
1 ♦ 
O 
i'- l:^ 
t- O lO O 
^ -tH o 
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T—C T-H 
o 
1—( 
+ + 
+ 
++++++++ 
1 + + 
+ + 1 + + + + + 
4- 4" 
' 
l’^ 1-H 
C^t^coirociXCico 
_ CM 
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o 
n 
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1 1 'tH 1-- X 
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1 -L 
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+ + + 4- 4" + + 1 
1 + 
+ 
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CO o 
COLOOOC5-^XlO 
CM :p X 
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M O 
1 . . . 
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1 
1 
1 1 + + + + + 
1 1 1 
1 1 1 1 + + + 1 
+ 
4- 
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Ot-CiL0P5 01t— LOCO 
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01 01 X ip M -h' O LO 
o 
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CM ^ 
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1 
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1 
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o 
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1 
1 
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O CO lO -h Ol 01 CO 
^ -H o — 
^1—(OXCOi—cLOCi 
I—I LO 
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5 
2 
3 
4 
2 
3 
0 
1 
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1 
1 1 1 1 1 1 1 
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1 ++ 1 1 1 1 1 
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1 
C3 
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1 1 
1 
1 1 1 1 1 1 1 1 
+ 1 1 
1 1 + 1 1 1 1 1 
+ + 
+ 
lO 
-H 
lOCOOIOOOOO 
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^ 05 CM M CO LO O 
LO O 
o o 
^ 01 01 OT CM CO lO 1 
1 to CO o 
O CM r-H f-H 01 01 M -H 1 
1 M 01 
r—l 
1 + 
+ 
++++++++ 
1 1 + 
1 1 1 1 1 1 1 + 
4* 4“ 
+ 
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L— 
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O C5 CO 
O CM CM O ^ CO O 
IP o 
1—^ 
IP O 
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CM O <M O O Ol CP O 1 
1 CO ^ O 
i.^ CM X O O X 1 
j ^ o 
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+ + 
+ + 1 I + H" 1 I I 
+ + 1 
+ + + + + + + + 
+ 
I 
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