70 NOTES ON FOREIGN PRODUCTIONS EXHIBITED 
where many of the productions which appeared at the Exhibition were 
grown, is as far north as the Orkneys. Norway, from its high northern 
latitude, must have but a short season of growth; but during that 
season the days are very long ; and, when at their longest, the twilight 
and the dawn merge into each other, so that day is nearly continuous, 
_ and of night there is almost none. This remark applies even to the 
more southern parts; but at Finmarken, under the 70th parallel of 
latitude, the sun never sinks’ below the horizon from May 24th till 
July 19th, being exactly eight weeks of continual sunshine, unless when 
clouds may occasionally intervene. The long days, or, in other words, 
the continual light doubtless exercises, as Dr. Schiibeler remarks, a great 
influence on the vegetation over the whole of Norway. 
The apple grows wild in Romsdal, lat. 62° 55’; the pear against 
walls at Throndhjem, or Drontheim, lat, 63° 25’; the cherry as a 
standard as far north as lat. 66°, Barley can be grown at Finmarken ; 
and the potato at a greater altitude than barley, and in many places 
where the latter will not тірер, It is a fact worthy of notice, as 
regards the potato, that it is perhaps the only cultivated plant that grows 
in the tropics, and also, in parts of Norway at least, within the polar 
circle, in the open air. 
Although other countries situated under the same parallels of lati- 
tude as Norway have, like it, a short season of growth, but continual 
light whilst that season lasts, yet in no other can cultivation be carried 
^ so ni» the north. This 18, doubtless, owing to the influence of 
e gull stream—that same influence which so remarkably miti 
as f stream approaches 
or infringes on the north coast under the 60th parallel of latitude ; and 
dly the cause which renders 
le, and, by some, they are even con- 
| Aug. | Sep. | Oct. | Nov. | Dec. 
Chiswick— , | 
Lat. 51°29" 369] 3871 4040] 468 | 5831 69-3 
612) 59-6 | 527|. 43-2 271 
17 
23| sj вэ | 103 | 122 
31:8 
he | 568| 501| 421] 39:3 
Difference— 
8° 25 
16 
