.affes are laid horizontally on the lait, or upperrmoft Layer
of Plaifer, or Lime.
This firil Row of Glafs they cover over with a Lay of the
fame Powder, an Inch deep; and over this lay another
Range of Glalfes: And thus alternately, till the Pan is quite
full; taking care that the whole Heap always end with a
Layer of Plaifier.
The Pan thus prepared, they cover up the Furnace with
Tiles, or a fquare Table of earthen Ware, clofely luted all
round; only having five little Apertures, one at each Corner,
and another in the Middle, to ferve as Chimnies.
Things thus difpofed, there remains nothing but to give
the Fire to the Work.-The Fire for the two firfi Hours, muil
be very moderate; and to be increas'd, in proportion as the
Colion advances, for the fpace of ten, or twelve Hours; in
which Time it is ufually compleated. At lail, the Fire,
which at firil was only of Charcoal, is of dry Wood: So that
the Flame covers the whole Pan, and even iffues out at the
Chimnies.
During the lail Hours, they make Effays from time to
time; by taking out Pieces laid for the purpofe, thro' the
little Aperture of !the Furnace, and Pan, to fee whether the
Yellow be perfe&, and the other Colours in good Order.
When the Annealing is thought fufficient, they proceed with
great Hafle to extinguilh the Fire, which otherwife would
foon burn the Colours, and break the Gla/.es.-
GLASSES are diflinguiffi'd with regard to their Form,
Ufe, Eec. into various Kinds; as,
Drinking Glafies, Optic Glaflies, Looking Glaffes, Burn-
ing Glafles, Eec.
Drinking GLASSES are fimple Veifels, of common Glafs
or Cryflal, ufually in form of an inverted Cone.-
Each Glafs confifis of three Parts, viz. the Calix, or Bowl;
the Bottom; and Foot; which are all wrought, or blown
feparately.
Nothing can be more dexterous, and expeditious than
the manner wherein thefe Parts are all blown; two of them
open'd, and all three join'd together. An Idea is only to
be had thereof, by feeing them aaually at work.
The Gla/fes chiefly ufed in England, are made of the
Aflies of Fern; Cryfial GlqaTes, being grown into Difefleem.
The exceeding Brittlenefs of this Commodity, notwithiland-
ing the eafy Rate of each Glafs, renders the Confumption
hereof very confiderable.
Ofptic GLASSES, are thofe made of ufe to Strengthen, im-
prove, or preferve the Sight. See OPTIC Glafs.
To this Clafs belong,
Convex GLASSES               CONVEX.
Concave GLASSES              CONCAVE.
Menticular GLASSES &c.    e   MLENS.
Meni/cus GLASSES, &C.        MENISCUS, C.
Plain GLASSES;              (PLAIN Glafs.
71o find the Foci of Optic GLASSES, fee Focus.
!Ielefcope GLASSES     TELESCOPE.
Objea GLASS      ?    OBJECT Glafs.
Eye GLASS        (fee EYE-Glafs.
Magnifying GLASS       MAGNIFYING.
Multiplying GLASS      MULTIPLYING.
Perf pefive GLASS      PERSPECTIVE.
Looking GLASS         L (LOOIiNG Glafs; fee alfo MIRROR.
Burning GLASS   " fee) BURNING Glafs; feealfo MIRROR.
Weather GLASS   (     WEATHER Glafs.
Cupping GLASS -   -   CUPPING Glafs.
GLASS Window          WINDOW.
GLASS 2Drop       feed DROP.
GLASS .Body     3       BODY.
GLAUCOMA, in Medicine, a Difeafe of the Eye, where-
in the cryftallir.e Humour is turn'd of a greenifh, or Azure
Colour, and its Tranfparency thus diminifh'd. See EYE,
and CRYSTALLINE.
Thofe in whom this Diforder is forming, difcover it hence
that all Obje'5ils appear to them as thro' a Cloud or Miff:
When entirely form'd, the vifual Rays are all intercepted,
and they fee nothing at all.
It is reckon'd incurable, when inveterate, and in aged
Perfons: And even under other Circumilances, is very diffi-
cult of Cure; Externals proving of little Service.
The Internals befi fuited to it, are thofe ufed in the Gut-
taSerena. See GUTTATerena.
Yul. Cefar Claudinus, Con1ful. 74. gives a Remedy for the
Glaucoma.
The Word comes from the Greek vyAavxd, glaucus, cO-
fius, fea-green.
The Glaucoma is ufually diffinguifh'd from the Cataraa
or Suffufion, in this, that in the Catara&k the Whitenefs ap-
pears in the Pupil, very near the Cornea, but fhews deeper
in the Glaucoma.
Some late Freneh Authors, however, maintain the Cata-
ra&t and Glaucoma to be one and the fame Difeafe.-Ac-
cording to them, the Cataraat is not a Film, or Pellicle form'd
before the Pupil, as had always been imagin'd; but an Al-


~8)                GLE
teration of the Humor itfelf, whereby its tranfparency is
eb~~~~~~z ~~to                    coi. see
prevented; which brings the Catafa& to theGlanconia. See
CATARACT.
GLEAM, is popularly ufed for a Ray, or Beam of
Light. See RAY.
Among Falconers, a Hawk is faid to gleam, when 1he
cails or throws up Filth from her Gorge.
GLEANING, or GLANING, the A&t of gathering, or
picking up the Ears of Corn, left behind after the Field has
been reap'd, and the Crop carried home.
By the Cuffoms of fome Countries, particularly thofe of
:Melun, and lirampes, all Farmers, and others, are forbid
either by themfelves, or Servants to put any Cattle into the
Fields, or prevent the gleaning in any manner whatever, for
the fpace of 24 Hours, after the carrying off of the Corn;
on Penalty of Confifcation, ec.
GLEBE, GLEIA, in Natural Hiflory, Chymiflry, 445 c. a
Clod, or Piece of Earth, containing fome Metal, or Mineral.
See ORE; fee alfoMARCHASITE, METAL, &C.
The Glebes are carried to the Forges to be wafh'd, puri-
fy'd, melted, &yc. See GOLD, SILVER, IRON, &C.
GLEBE, or GLErA-land, is properly us'd for Church-land.
Dos vel Sierra ad Ecclefianz pertinens.-  See CHURCH.
Glebe-land is moai commonly ufed for that Land belong-
ing to the Parifh Church, befide the Tithes; tho' in the more
general, and extenfive Ufe of the Word, Glebe is applica-
ble to any Land, or Ground belonging to a Benefice, Fee,
Manor, Inheritance, or the like.
Thus, LZindwode, Gleba eft terra in qua conv/flit dos Ec-
clefie; generaliter tamen ftimitur pro folo, vel pro terra
culta.-
Thus, in the Civil Law, Slaves were faid to be a1eiffed
to the Glebe, i. e. went with it, were fold with it, g  The
Right of Patronage fiould be annex'd to aGlebe. See PA-
TRONAGE.
GLEET, in Medicine, a Flux of thin Humor from the
Urethra. See FLUX, URETHRA, &C.
This, or a Gonorrhea Simplex, often fucceed the Cure of
a Gonorrhea Virulenta, and Sometimes remain obilinate,
even after the Ufe of a Salivation. See GONORRHI1EA.
The Gleet may happen either from too great Relaxation
of the Glands in the Urethra, or from a Corrofion or Exul-
ceration of them. It appears moil frequently after a Go-
norrhma has been of long ilanding, or ill managed in the
Cure; as by the Ufe of acrid por corroding Injedions, and
the like.
The Glands may here alfo happen to be ulcerated by the
Matter of the Running, which is often fharp enough for
that purpofe.
A Gleet is diffinguifh'd from a Gonorrhea 1fimplex, not
only by the Colour, and Confifdence of the Matter evacuated,
but alfo by the manner wherein it comes away: The Mat-
ter of a Gleet comes away as well at one time as at another;
but that of a Gonorrhea fimplex chiefly in Eredions, and
when the Patient goes to fool. The Matter of a Gleet is
commonly brownifh, but that of a Gonorrh.eafimplex white.
And the Continuance of a true Gleet is unattended with
Weaknefs, or other ill Confequences, and dangerous Symp-
toms; nor does it unfit Men for Procreation, as Gonorrhea
fimplex will.
An afiringent Regimen is the moai proper in both; Coffee
and Claret are fuppofed proper Liquors in thefe Cafes: So
are thofe made acid with Juice of Lemmons, Vinegar, Cec.
GLENE, GLENA, GLENOIDES, in Anatomy, a Name
given to thofe Cavities in Bones, which are of a middle
kind, that is, neither of the deepefl, nor Shallowel, but in
a mean between the two. See BONE.
Thus, the Cavity of the Omoplate, wherein the Hume-
rus is received, is a Glene, or Glcnoides. See OMOPLATE.
GLENOIDES, or GLENE, according to Z'lancbard, &c. is
peculiarly attributed to two Cavities in the lower Part of
the firil Vertebra of the Neck.
The Word is Greek, compofed of VAi1Vn, Eyelid; and eXJ'GF,
Form.
GLICYRRHIZZA, or GLYCYRRHIIZA, call'd alfo Ra-
dix dulcis, Liquiritia, and Liquorice, a fweet-tafied Root,
of confiderable Ufe in Medicine, againft Coughs, and other
Diforders of the Breaft and Lungs.
The Shrub which bears it, is cultivated in divers Parts of
England, particularly about Pontefraa in Torkj/ihre; in
fome Provinces of France, Spain, Germany, and Mufcovy; and
efpecially in Perfia, where it thrives better than any where
*ele; there being fome on the Banks of the Caraiv, Kenki,
and Kerni-arpa, whole Roots are thicker than the Arm;
and whofe Juice, in refpe& gf Strength, Virtue, Wc. are pre-
ferable to others.
The Root of the Liquorice Plant runs, or fpreads a great
way in the Ground, and emerging into Air from Place to
Place, produces fo many new Stems, or Plants few of which
rife above five Foot high. Its Leaves are thick, green,
Thining, half-round, and glutinous: Its Flower red, like the
Hyacinth i and itsSeed contain'd in roundifl Pods.
-   in