COMMERCE AND MODES OE COMMUNICATION 139 
“ Maff, maff! ” which generally means that a crocodile has 
made his appearance in dangerous proximity. Rapids 
are overcome with great skill, but if there is no help for 
it, the boat is brought to the bank, unladen and carried 
past the rapids, where it again receives its freight. 
River-boat in East Madagascar. 
(From the Revue des Sciences.) 
In the south-east great wooden rafts called sary are 
used; in the south they employ boats of a still more 
primitive character, being simply bamboo rods tied 
together. 
Vessels of superior build are used among the Sakalava 
of the west, as well as by the Antankara of the north; 
