143 Profeffbr camper on the Organs of 
hole /, />, fig. 3. being the real orifice of the bag d, /, 0, n, 
fig. 4* 
As all this lies above the rima gloitidis i, fig. 3. or /, b, 
fig. 4. I concluded, that the voice, having palEed the 
glottis , entered this membranous bag, d , n, 0, i, by 
which the neck fwelled, and out of which the air was 
forced by the contraction of the latiffnii colli. I had often 
obfervcd this {welling in feme living apes, but now 
found out the realon of it, and was perfuaded of the in- 
capacity of this animal to modulate his voice fo as to ar- 
ticulate words. 
I then confidered this remarkable pafiage of galen’s, 
de Ufu Part. Ed. Charter, tom, IV. lib. 7. cap. xi. p. 
.461. Foramen in utraque lingula (epiglottidis) parte 
.uyurn ejfecit natura , et foramini ipji parte interna ventri- 
.eulum fuppofuit non parvum. In quem quwn aer vias 
nadlus amplas in animal ingreditur , rurfufque. exit , nihil 
- in ventrem depellitur % , and what he, p. 466. further 
obferves, fijfuram potius, quam foramen ejfe. 
When I compared this with the organ in the Cyno- 
••cephali, fig. 3, 4. I was at a lofs how to explain galen; 
for I could by no means apply thofe ventriculi , by which 
he feemed to have underftood large capacities, to the 
•Email holes h, /, k, fig. 4. above the rima glottidis /, h, 
which, though much larger in the Cynocephali than in 
5 men, 
