The hygrology, or chemico-physiological doctrine of the fluids of the human body

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The mutus of the nye is thicher and more lena ctous than every other mucus os the primae; vise ; hich, as they recede to the interior, becomemore fluid; and again thichen to ards the terminalion os the large intestines. The SPEcipic Gn Avi TY is sonae hat greater than water, in Whicli it at sirst swims upon thes ursace; but, after having expelled the air globules it contained, always fidis to the bottom

That collected in the nostriis during the nigbi

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66 The CHEMlCO PHYSIOLOGICAL Domino contains very litile air, and when ejected in illonaorning, s metimes sinχου immediately in water. Exposed to the Ain, it dries into friable siaining lamellae. Placed on bi rning coal, almost ille Rhale fies olf without any smeli; but is mixed With any purulent particles it beCornes foetid. It is Deither mixed, nor diluted in pure quarna ater, nor by boiling in Water ; although during the ebullition it may apparently unite with the water, yet after cooling it falli to the boliom. It appears, in a manner, to admit very fresi

It is not solubie in neutral, aeraled ali asine, Ilaed nor volatile salta It is decomposed by causic al ali.

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It is in spissated by the minerat ac ds in a s mali dole, and in a larger qiuantity it is diliived, andrendered os a disterent colour. With the actu ofvilr ol, it fornas a purpis colour, and almost thewhole deliquesces, eXcept sonae grumuli whichiali to the bottona. blucus is more completelydistblved by the acid os sali, and an amet sine colo tir is produc ed. It appears sonaewhat to resist . the acid os nitre, but to the stronger acid it gives Way; and heia distatved, oblatras a Iellom co-

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68 Τhe CHEMICO PHYSIOLOGICAL Doctrine The CossT 1 TUENΤ PRINCIPI Es appear to be, the album en os the serum inspis ted with oXygene. Thus this mucus is very fir mly inspissated, and an artificiat coryga is produced, Whicli conlinuessonae days, is me vapour of oxygenaled muriaticacid be di a via up the nostriis. By DRY DisTILLATION like the albumen ofllie serum, it is changed into volatile athali, em pyreumatic Oil, and carbone. It is solubie by themin rat alit, lihe the coasulum of the seriana,

and the fame colourS are produced.

least by the passing of the air through the nostriis, they be dried and deprived of their

a. It moderates the excessive fens bilio of the Derves fas it Were naked:) sor when deficient, a very dis agreeablς sensaliun is produced by the

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of the I LUID s of the HUMAΝ BODY. 693. It, in a manner, detains the odorous particles, attracted by the nostriis to the olfactory

4. It attradis any noxious particles, and preVentstheir being inspired Uith the air through tho nostriis into the lungs.

THE SALIVA. CHE humours secreted by the salivary glanda

into the cavlty of the mouth. The SECRETORY ORGAN is composed of threepair of salivary glandS.

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o Tlie CHEMICO-PHYSIOLOGICAL Doctrine I. The parolid glan is, hicli evacuate their saliva. by mean S of the Stenoniali duct bellinii themidille dens molaris of the upper jaw.2. The submaxillo glandue. Whicli potar out their saliva through the Warthonian duri j on each si de of the frenulum os ille tongue by a nar-

The saliva is continuatly j allo ed Willi, Orvithout masticat ed 1 od, and sonae is adsono out

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The OUANT1ΤY of twelve potands is suppossedlo be secreted in twelve houi s. Durins mastication and speahing the secretion is augmented, si ona the mechanical pressi ire of the musicles uponthe salivary glandS. Those Who are hungry secrete a great quantity, front the si glit os agreeable sood. It is imperfectly dissetved by et sater; someumat coagulaled by alcohol of mine; and is congealedu illi more dissicut ly than water.

It is inspissated by a s mali dose, and distblved in

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The CHEMICO-PHYSIOLOGICAL Doctrine Ιt corrodes copper and iron, and precipitales silver and leud 4. the forin os corneous luna. It assi sis the SPIRi TUOUL FERMENTΑΤio N of farinaceous substances heiace barbarous nations prepare an inebriating drink, frona the che wed roots of the Patropha Manthoi and Piper ἐν tibi licum. It possesses an antlseptic virtve, according to the experiments of the celebraled Pringis. It eastly putrid in Naran air, and Osr volatile aikali. CONSTITUENT PRINCIPI Ps It appears to consistos Water, albumen, ammoniacat sali, and animal

Vater, there is i gi ven out by distillation

rbe Albumen, is detected by alcohes of Wine. The Ammoniacal fuit, is demonstrated by raling quick lime Mith . saliva; ani , the anicia earib from salivat calculus, and illie producis

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of the FLUIDS of the HUMAN BODY. a The Us of the SALIUA. I. It augments the ta se of the sood, by the evolution os sapid matter.

a. During mastication, it mixes With, distatues, and resolves into iis principies, the food; and changes it into a pullaceous masse, fit to beswallo ed. Hence it commences chymiscarion.

3. It moderates thirsi, by moistening the cavityof the mouth and flauces.