442 NATURE | JUNE 25, IQI4 
registered at three stations, widely separated : which was nearly 9° of longitude to the east of its 
Valencia, Sumburgh Head, ir the Shetlands, and | average limit at the end of May, again advanced, and 
North Shields. The curves exhibiting changes in | was 7° east of it in October, and 9° in December ; 
but retreating rapidly to- 
i9il. wards .the ‘close of (the 
month. Increased activity 
suave [Ser [Oct] Nov] Dec] of the Labrador Current in 
AiR TEMPERATURE. aN © 42 the two closing months of 
the year reduced the sea 
* temperature for the most 
Melee S ay. part below the normal in 
= / the northern portion of the 
ocean, although south of 
the 44th parallel it tem- 
porarily rose more than 2° 
above. 
As regards air tempera- 
ture during the year IgII, 
in the months of January 
and February, from the 
close of April to the close 
of September, and again in 
December, the temperature 
of the air over Great 
Britain and Ireland was in 
excess of the average; 
moreover, during the 
months of May, July, 
August, and December it 
a 
ae 
was greatly in excess. In 
[Fee [War pew [wa [one 
October the temperature 
temperature at these places show departures from the | was about the same as the average, and in March, 
normal in degrees Fahrenheit, by reference to the April, and November only can it be said to have been 
scales above and below a line which represents the | in defect. 
average of numerous ob- 
servations extending over 1912. 
a period of thirty-five 
years. 
The salient features ex- 
hibited in the years) 1911 
and 1912 are as _ fol- 
lows :— 
Sea temperature in the 
northern half of the ocean 
is shown to have been 
slightly in excess of the 
normal in January; but, as 
indicated by the 70° iso- 
therm, in defect, but in- 
creasing, in the southern 
half. Subsequently it in- 
creased to above the 
normal in the  south- 
western Atlantic until the 
end of February, and 
declined to the north-east- 
JUNE 
se Qeparture from the Normal. 
pa Fe 
= ie 
Mean _| 
35 Yeers 
© 
© 
° 
BIA, TEMPERATURE. 
\ 
Florida to Valencia. 
O-NWAUDND 
Longitude. 
East of Normal. 
| East of Normal 
—=O- No SURV 
Degrees of 
Degrees of Longitude 
West of Norma/ 
West of Normal. 
ODMVOMSHON 
ODBVYAWSON 
AIR TEMPERATURE. 
+4" 
Departure from the Normal, 
Mean _| 
35 Yeare 
° 
= 
SEA TEMPE RATU 
Greenland to Orkney Islands. 
Insufficient 
lusufficient 
Data. 
ward during that month. 
The conditions were re- 2 i 
versed in March, a fall in a3 ara 
temperature taking place | g2& eas 
to the south-west, and a 2s 3 oat 
rise to the north-eastward. | $3? aa a 
Over the area represented [-s—°— a : 0% 
by the 60° and 70° iso- | 332 pe: 223 
therms temperature rose in | 93 + J eq 258 
April, but declined to the | “y é ats 
north-eastward. After April Se ii a £ 
sea temperature was in Bia wes: EES : 4 Eig 
excess of the normal until Fes. | Mar ]apri | May |June | 
October, except in the 
south-west portion of the 
ocean, when the 70° isotherm retreated to the west of Throughout the greater part of the yea1 1912 the 
its average limit in August. The temperature in this | curves of air temperature resemble, in a marked 
part, however, quickly recovered, the 70° isotherm, | degree, those relating to sea-surface temperature. 
NOi12330, VOl032]| 
