t 625 ] 
As to its Ufes, it is faid to be the Inftrument of 
Speaking and Tafting > as ro the latter. Experience 
fhews us that the very Apex of the Tongue is lefs 
capable of difcerning Taftes than the next Part to 
it, and this than the Parts yet farther back, all 
along the Body to the Root ; fo that altho’ the 
Tafte of any thing is firft perceived by the Apex* 
yet the Guft increafes, the more the Morfel ap- 
proaches to Deglutition, until it is quite protruded 
into the Gulai becaufe as the Tongue grows more 
thick backwards it contains more of the nervous 
c Papill<e than the fmaller Part, and alfo becaufe 
there is a Capacity of tafting in the Membranes of 
the back Part of the Roof to the Root 5 as it Na- 
ture intended to increafe the Guft, that Deglutition 
may be the better and more eagerly performed for 
the Service of the Animal: Hence altho' the Apex 
and Body of the Tongue be gone, yet there is not 
a Depravation of Tafte, which is the Cafe of the 
Perfon now under your Confideration, 
As to Speech , which is only Sound or Voice arti- 
culated into Expreffion, the Tongue is not the foie 
Organ for fuch Articulation ; the Lips y Teeth , and 
Roof of the Mouth are Inftruments alfo for the fame 
Purpofe* the two latter for the neceflary Refiftancc 
to the Apex of the Tongue, and the Lips for the ab- 
folute Articulation and Pronunciation of many Let* 
ters ; however the following Ihort Examination of 
the Letters of the Alphabet, as exprefled by thefc 
Organs, will demonftrate it. 
The Tongue exprefies fome Letters with its Apex f 
and fome with its Root. 
Thofe abfolutely proper to the Apex are only five, 
d 7 l, n y r, t. 
M m m m 2 And 
