190 А. Е. Porsitp. 
Scoresby Sd. West-Greenland 
Cassiopestetndgon .o0000u0000000000000000 1570 ОФ OOF 
Pedicularis ОЗ о бо so 000060000080000000 1320 100 70 
(785) 
Pandas Wie a BARE ce eee Coe ee — CdD TO 
Campo Ua ]LOT ON 000100000000000000006 1570 940 72° 
1290 5. Grl. 
DFA COWMVOSUEDS FREE 940 100 00” 
(910) 
IB, CPUOCADNOULS 505008606 LU ER A ATP 1255 VIO TO 
(880) 
AT MUC ANAL DINE ER RE RENSES RU RE RER ER 1255 TD TO 
GRO ООО, °° 25000006000000 1255 675 70° Disko 
Snow- or Firnline. 
WARMING (30, p. 82) has compiled records of the altitude above 
sea-level at which the perpetual snowline occurs in Greenland. From 
W. Greenland the statements vary considerably; the average may 
be taken to lie between 600—950 m. No very pronounced difference is 
found as we travel from the extreme South until we reach localities, 
which lie far to the North, a fact which requires explanation: as suggested 
by WARMING the reason may be decreasing precipitation accompanied 
by increasing evaporation as we pass towards the North. Since the 
publication of WARMING's paper, DRYGALSKI (3, p. 247 & 303 ff.) has 
stated that the snowline on the Qarajaq Glacier and on the north-east 
side of the Nügssuaq peninsula in W. Greenland, а little north of the 
70th parallel, occurs between!) 8—900 m. above sea-level. In Е. Green- 
land Kocx and WEGENER (8, p. 57) found the snow-line on Germania 
Ld. 77° Lat. N. at 3—500 m. while on Dr. Louises Ld., hardly more 
than 100 km. beyond the coast, it was found to be about 1000 m. above 
sea-level. Measurements by means of captive baloons showed no decrease 
in temperature below about 300 m. Within the 70—75th parallels PAYER 
(15, р. 564) places the snow-line at 9—1200 m. above sea-level. 
Hartz unfortunately gives no records of the snow-line altitude, 
but, from remarks made by him and other observers it would appear 
that towards the head of the fjord in Scoresby Sound the snow-line 
occurs at a still greater height. This is consistent with, and may be 
the reason for, the occurrence of a much greater number of species at 
a higher altitude on the East of Greenland. Thus in E. Greenland from 
1000—1600 m. not less than 43 species pass the 1000 metre line, while 
1) On Aug. 25th when the highest absolute temperature was measured in the 
lowland, Овуслтзкг found the 0° С. isotherm 860 m. above sea-level. 
