370 i HI: innrsrivi-: MTAIIATI'S /.v MA.MMM.JA. 



point where it is reflected from the side of tho cheek mi to tin- inferior 

 maxillary bono. It is bordered, for tho whole of its extent, by tin: Imeeal 

 in r\v. 



Doth glands pour their secretion into tho month by numerous salient 

 orifices, which can bo seen arranged in lino on the buccal membrane, parallel 

 to each molar arcade. 



It may be remarked that these glands establish a transition between (lie 

 preceding and those yet to be mentioned. Their lobules are far from 

 representing so compact an agglomeration as that formed by the par. did or 

 subliugual lobules; and they tend to separate from each other to 1> eome 

 more independent. Therefore it is that many writers regard them as distinct, 

 and describe them as superior and inferior molar glands. 



5. Labial, Lingual, and Palatine Glands. 



Tho lobules composing these glands are spread in layers more or less 

 thick on the inner face of tho mucous membrane, instead of being 

 agglomerated in masses, as in tho previous glands. Sometimes they are 

 scattered, in consequence of their small number. In general, tho excretory 

 duct of each glandule opens independently into tho mouth, without com' 

 inunicating with those of tho neighbouring lobules. 



Labial Glandular. These are more abundant in tho upper than in tho 

 lower lip, and pass beyond the commissures to be spread for a short distance 

 over tho inner aspect of the cheeks. It is easy, in the living Horse, after 

 turning up the lip and carefully wiping it, to see tho salivary fluid secreted 

 by these small organs escape by their excretory ducts. 



Lingual Glandulce. They form a layer under tho mucous membrane at 

 the base of the tongue, and adhere very closely to the fibres of the small 

 hyo-glossus muscle, and, laterally, ore continuous with the layer which 

 covers the external face of the amygdaloid mucous membrane. They are 

 also found on the side of the tongue, above the superior border of the hyo- 

 glossus longus muscle ; though these are few and scattered, and look as if 

 iucrusted in tho substance of the hyo-glossus muscle. 



Staphyline (or Palatine) glandular. The thick layer these form under tho 

 anterior mucous covering of the soft palate has been described with that 

 organ. We have only to observe here, that it is continuous, laterally, with 

 the glands at the base of the tongue, through the medium of the glandulffi of 

 the amygdaloid cavity ; and in such a manner, that tho part of tho mouth 

 immediately in front of tho isthmus of the fauces, and which might bo 

 justly considered as the isthmus itself, is enveloped in a complete glandular 

 zone. In the dead body, we always find in this compartment a greater or 

 less quantity of viscid fluid, which is certainly secreted by this zone. It 18 

 here, then, that tho alimentary bolus is enveloped in the glutinous matters 

 intended to favour its passage in the pharynx and oesophagus ; and it is 

 worthy of notice that the constricted passage where this secretion is poured 

 out in the living animal, immediately precedes tho canal traversed by tho 

 bolus of food in the act of deglutition. 



DIFFERENTIAL CHAHACTEHS IN THE SALIVAHY GLANDS OF OTIIKlt THAN SOUPED 



ANIMALS 



The enlivary system of the Jli.rbivora is more extensive than that of the Omimoru, 

 nnd especially the Carnivora. 



KVMIXANTS. 1. Parotid glaml. The pmolid glands of the Or arc distinguished by 



