John Smith wrote:
M Peraaho wrote:

But what about drums, maybe the radio operator is not carrying matches.
In that case he would have to take out his pocket knife, hollow out a
log, hunt down some critter, kill and skin the critter, remove the hair
from the hide, dry the hide, stretch the hide over the hollow log and
send "drum signals."

Of course, if he didn't have a pocket knife he would be up the river...
frown

JS