42 Nr. 2. C. H. OSTENFELD and C. SYRACH LARSEN: 
A little to the south of the most northerly localities 
with the quite dwarf, stunted specimens, more or less open 
forest is found, becoming denser and better formed the 
further south it approaches. The growth everywhere in the 
northern localities is slow, ‘and the average size small. 
Thus, the larch in the Arctic circle seldom exceeds 12 m. 
in height at the Lena, and the trees are all more or less 
stunted. The forest is so open, that the branches hardly 
touch one another, and rejuvenation is very slow. CAJAN- 
DER, Who described the forest there also, examined a number 
of trees in the neighbourhood of Shigansk on the Lena, 
close to the Artic circle, and as the measurements give a 
good impression of the slowness of growth, they are given 
here: — 
Height Girth Age 
ae eae er 190 cms. = about 85 years 
I Py eee a = 26 cms. 0 
NOTE PES 310, = betes 
EW ee hn he, 5 Ban =: pe 
UDE RR aa 100 FE — 136.4454 
4 FPE yo = 13048 
LESE ees: Mak Tow — 120925 
WINE En, MOSS 41 cms. 1508 
LCR TR 990 — _ 16042 
De BÆRE 2 Bi 1100. ,— ale 150% 
The following three younger trees, however, were 
measured at the same time and in the same locality: 
Height Girth Age 
Lis AE ae es 350 cms. 13 cms. 17 years 
EN NX HOUR Bi 38. = 
ih ere ©" 155257 DA = BAT == 
