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

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of the FLUIDS of the HUMAN BODY.

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n The CHEMICO-PHYSIOLOGICAL Doctrine

THE SUCCUS LEMOSUS, OR FAECULENT JUICE OF THE CARUNCULA LACHRYMALIS.

THE puriform sebaccous juice found adheringto the internat angle of the eyelids, especiallyas ter feeping. The SECRETORY OAGAN appears to be thecaruncula lachrymalis, siluated in the internalangle of the tarsus, formed os severat sebaceous glands, perforated by many foramina, and furnis hed with smali pili, scarcely conspicuous, whicli in s me manner delain this saeculent se

cretion.

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of the FLUIDS of the HUMAN BODY. The UsE appears to be to obturate the hiatus of the tars in the internat angle of the eyelids, and thus prevent the lears falling in that place

THE MUCUS OF THE LACHRYMAL SAC.

THE mucus whicli lubricates the internat sur- face of the lachrymal sac. The SECRETORY ORGAN appears to be composed of the arterious vesteis of the pulpous, red me bratae, Whicli forins internalty the lachrymal sac. The abundant mucus flows Uith the tears throughthe nasal duct italo the nostriis. USE It prevenis the concretion of the lachrymal passages, and defends them against the salineacridity of the leaTS.

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I E smegma, whicli lubricates the internat s face of the meatus auditorius externus and membrane of the tympanUm. The SECRETORY ORGAN is composed of the ceruminovs glant, situaled under the lita lining the meatus auditorius, upon Whicli the excretorydue is OPen.

The QUANTITY in a state of health is smali: but is it be sustered to collect sor sonae time, it Very frequently fornas into solid cylinders, by

attracting the oXygene of the atmosphere ; and thus stopping up the meatus auditorius, prodUCOS

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98 The CHEMICO-ΡHYSIOLOGICAL DOct ineto the air for a long time, is converted into akind of wax, by attracting the oxygene of the atmosphere. A Bilious principie, secreted fisom the blood, which gives the bitter taste.

1. It lubricares the sensibie menabrane os the meatus auditorius externus and tympanum, test

the air, for whicli purposse me hairs of the meatus auditorius also assist. 3. It moderates the vehentence of sun.

THE MUCUS OF THE EUSTACHIAN

THE mucus Whicli lubricates the cavily of the

eustachian iube. ι

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of the FLUIDS of the HUMAN BODY.

The SECRETORY ORGAN is constituted bu the arterious Vesteis of the pituitary menibi ane, Whichis reflected si ona the fauces into the cavity of the iube. The supersuous mucus flows into the

Usg: It covera the infernat sursace of the iube, and prevenis it being di ted by the air.

THE AIR OF THE CAVI TY OF THETYMPANUM.

1HE almospheric air, Which enters the caVityof the tympanum froni the fauces, through the Eustachian lube.

Tlie Usg of this air appears to be, to resist thepressure of almospheric air russa ing too violently through the meatus auditorius eXternus into the tympanum, when the soland is Very violent. Lastly, sonae deas peopte by opening their mouilis appear to hear by means of the agitated air of the tympanum.

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THE AQUULA, OR WATER OF THELABYRINTH. THE insipid water Whicli silis the cavlty of the

tympanum.

There is no air found in this cavlty ; sor thewater so filis up the scalae of the cochlea, holh sursaces of the spirat lamina, the three semi-circular canals and the vestibulum, as to inundate the Q. branches of the s in auditory nerve. The SrcRETORY ORGAN of this fluid appears, to be, the exhaling arteriolae of the labyrinlli. When abundant, it is absorbed by the oscula os

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of ilia FLUIDS of the HUMAN BODY. torvirath, to preverit their becoming dry from theair of the cavlty of the tympanum. a. It moderates the tremors of the founds, whicli,

IN THE NEC M

THE JUICE OE THE THYRO ID GLAND.

THE yellowish white juice contained in thecelis of this gland, especialty in insanis.

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tor The CHEMICO-PHYSIOLOGICAL Doctrine

to the opinion os sonae, been hitherio detected. The abundant j uice appears to be absorbed by the lymphatic vesteis going frona the gland . The UsE of this juice, as weli as of the thyroid gland, as yet remains anaongst the physiological desiderata. It has lately been supposed lo assorda diverticulum to the blood when driveri violentlylo the head. It is frequently the seat of endemicat siuellings amongst the Tyrolese and Swis s.

I HE MUCUS OF THE CLSOPHAGUS.

THE mucus which covers the internat sursace of the oesophagUS. The SEc RETORY ORGAN of this mucus appears to be, peculiar muciparous suus es, siluated in thatela cellulosa of the CesophagUS.

The DolisAL GLANDs, Which lay near me Cesophagus, and are Often very conspicuous about the fifth vertebrae of the thoraX, are mere lymphatio glatas; have no excretory dudis to separate a pe-

culiar juice into the oesophagus, according to the