(ex 
SYDNEY H. BALL: 
Fig. 4. Packing kayaks over porterages. 
Umiaks, however, must be dried out each third day. On messenger 
service, a kayakman will make 64 km (40 miles) a day for several suc- 
cessive days in his fragile, daintily-formed kayak (Fig. 3). Land travel 
is slow and difficult and routes must be carefully selected, else progress 
will be stopped by an unscalable cliff. The native of southern Green- 
land is a relatively poor packer (Fig. 4). 
Fig. 5. Greenlanders. 
