Hard by an (i) hundred nimble workmen stand, Thefe noble fpirits readily preparing;

(d) Befide the common tunicles of the whole body, the brain is covered, firft with the bone of the full; Secondly, with the pericranium, or fein, covering the full; and thirdly, with two inward feins.

(e) These two are called the bard and tender mother. (f) The whole fubftance of the brain is divided into four parts, by divers folds of the inward fkin.

(g) The outfide of the brain is fafter, and of afby colour; the inward part white and harder, framed of feed.

(b) Almoft in the midst of the brain, are two bollow places, like balf moons, of much use for preparing the Spirits, emptying rheum, receiving odours, To.

(1) Here is a knot of veins and arteries weaved to gether; by which_the_animal spirits are concocted, thinned, and fitted for fervice: and close by, are two httle bunches, like teats, the inftruments of smelling. VOL. IV.

Not that bright spring, where fair Hermaphrodite
Grew into one with wanton Salmafis;
Nor that where Biblis dropt, too fondly light;
Her tears and felf, may dare compare with this;
Which (q) here beginning, down a lake de-
fcends,

Whose rocky channel these fair streams de-
fends,

Till it the precious wave through all the Isle difpends.

(4) Next is that Septum Lucidum, or bright wall, fevering thefe bollow caverns.

(1) The third cavity is nothing else but a meeting of the two former.

(m) It lies under Corpus Cametatum, or the chamber substance, which with three arches, bears up the whole weight of the brain.

(n) By the third cavity are two passages, and at the end of the firft is the (infundibulum or) tunnel, under which is (glans pituitaria, or) rheum kernel, as a sponge fucking the rheum, and diftilling them into the palate.

(o) The other paffage reaches to the fourth cavity, which yields a fafe way for the spirits.

(p) The fourth cavity is maft noble, where all the Spirits are perfected. By it is the pith, or marrow, the fountain of these spirits.

(q) This pith, or marrow, Springing in the brain, florus dorun through the back bone. Cc

(r) All the nerves imparting all fenfe and motion to the whole body, have their root partly from the brain, and partly from the back bone.

(s) The pith of the back bone, springing from the brain, whence, by jour paffages, it is conveyed into the back; and there all four join in one, and again are thence divided into divers others.

(1) The first part of the face is the forehead, at whofe bafe are the eyes.

(a) The eyes are the index of the mind, discovering every affection.

(*) Orpheus, called the looking-glass of nature. (y) Plato afmed them lighted up with beavenly Sre, not burning but feining.

His fubftance as the head-fpring perfect white; Here thousand nimble fpies are round difpread: The forms caught in this net, are brought to fight, And to his eye are lively pourtrayed. [cacing

The () laft the glaffy wall that round enThe moat of glafs, is nam'd from that enlacing. The white and glaffy wells parts with his strict embracing.

(ƒ) The third, from the likeness, is called the glffy bumour.

(g) There are fix tunicles belonging to the eye; the fir, called the conjunctive, folid, thick, compaffing the whole eye, but only the black window.

(b) The second is cornea or borny tunicle, transparent, and made of the bard mother.

|

› (i) The third is uvea, or grapy, made of the tender mother, thin and pervious by a little and round window ; it is diverfely coloured without, but exceedingly black |

w.thin.

The (9) portal hard and dry, all hung around
With filken, thin, carnation tapestry;
Whofe open gate drags in each voice and found,
That through the fhaken air paffes by:

The entrance winding, left fome violence Might fright the judge with fudden influence, Or fome unwelcome guest, might vex the busy sense.

XL..

This (+) cave's first part, fram'd with a steep afcent,

(For in four parts 'tis fitly fevered)

(n) The eye bath two nerves, the optic or feeing nerve, and moving. The optic separate in their root, in the midft of their progrefs meet, and strengthen one the

other.

(•) The moving, rising from the fame frem, are at ¡ength fevered, therefore as one move, so moves. the

other.

(p) Hearing is the fecond fenfe, iefs noble than the eye, more needful.

(g) The outward ear is of a grilly matter, covered with the common tunicle; it is framed with many crooks, left the air fould enter too forcibly.

(r) The inward car confifts of four passages; the firft is steepy, left any thing foould creep in. Ccij

Makes th' entrance hard, but eafy the defcent: Where stands a braced drum, whofe founding head

(Obliquely plac'd) ftruck by the circling air, Gives inftant warning of each sound's repair, Which foon is thence convey'd into the judgment chair.

XLI.

The (s) drum is made of fubftance hard and thin:
Which if fome falling moisture chance to wet,
The loudest found is hardly heard within:
But if it once grows thick, with stubborn let.
It bars all paffage to the inner room;
No founding voice unto his feat may come :
The lazy sense still fleeps, unfummon'd with his
drum.

XLII.

This (t) drum divides the first and second part,
In which three hearing inftruments refide;
Three inftruments compact by wondrous art,
With flender string knit to th' drum's innerfide;
Their native temper being hard and dry,
Fitting the found with their firm quality,
Continue fill the fame in age and infancy.

XLIII.

The first an («) hammer call'd, whofe out-grown fides

Lie on the drum; but with his fwelling end. Fix'd in the hollow flithe, there fast abides :

The ftithe's short foot, doth on the drum depend,

His longer in the ftirrup furely plac'd:

The stirrup's fharp fide by the ftithe embrac'd; But his broad bafe ty'd to a little window fast.

XLIV.

Two (x) little windows ever open lie,

The found unto the cave's third part conveying; And flender pipe, whofe narrow cavity

Doth purge the inborn air, that idle staying, Would elfe corrupt, and still supplies the spending :

The cave's third part in twenty by-ways bending,

Is call'd the labyrinth, in hundred crocks afcending.

XLV.

Such whilome was that eye-deceiving frame,
Which crafty Dædal with a cunning hand
Built to empound the Cretan prince's shame:
Such was that Woodstock cave, where Rofa-
mond,

(s) If the drum be wet with falling of rheum, we are bard of bearing; but if it grows thick, we are irrecoverably deaf.

(1) The drum parteth the firft and fecond paffage. To it are joined three little bones, the inftruments of bearing; which never grow, or decreafe, in childhood or age; they are all in the fecond baffuge.

(u) The firfl of thefe bones is called the hammer, the fecond the fitbe, the third the firrup: all taking their names from their likeness; all tied to the drum, by a little firing.

(x) Thefe are two small tauges, admitting the founds into the bead, and clearfing the air.