AFRICA. 147 
penfable figns that precede or feparate the 
words, and without which they would hare 
no clear or preclfe meaning. 
Thefe clappings are of three kinds, all 
very different from each other. The firft, , ' 
which I fliall diftinguifli by this mark (a), 
the fimpleft, fofteft, eafieft to be executedj> 
and that which is moft ufed, is performed 
by prefling the tongue to the palate, againfl: 
the incifive teeth, while the mouth is fhutj 
then, by quickly detaching the tongue, and 
opening the mouth at the fame tim^, this 
clapping is heard ; which is nothing elfe 
than that fmall noife, very familiar to us, 
when, haraffed by a tirefome perfon, we 
wifli to fhew, without fpeaking, that we 
have loft all patience. 
The fecond clapping (v) is more fonorous 
than the firft. It is fufficient, in order to - 
form it, to detach the tongue from the mid- 
dle of the palate, and to imitate the noife 
which grooms employ to make, a horfe go 
fafter. In this cafe no force is neceffary, but 
fimply to detach the tongue, and the found 
is produced of itfelf. Were the found too 
diftind;, it would be impolfible, or at leafl: 
L % very 
