20 
l N D 
il/le of thefe places, concerning the origin and form of 
the earth. Burnit. —Old age makes the cornea and coat of 
the cryftalline humour grow flatter : fo that the light, 
for want of fufficient refraftion, will not converge to the 
bottom of the eye, but beyond it, and by confequence 
paint in the bottom of the eye a confufed picture ; and, 
according to the indifincir.efs of this picture, the object 
will appear confufed Newton. 
. INDISTINGUISHABLE, adj. Incapable of being dif- 
tingui (hed. 
INDISTUR'BANCE, / Calmnefs; freedom from dif- 
turbance.—What is called by the Stoics apathy, and by 
the Sceptics indifurbance, feems all but to mean, great 
tranquillity of mind. Temple. 
IN'DITCH, f. An inner ditch. Scott. 
To INDFTE, [of indilum, Lat. to put in, or of bihtan, 
Sax. or dichten , Ger. to invent or coinpole, particularly 
in writing.] To compofe or dictate the matter of a letter, 
or other writing. See To Endite, vol. vi. 
INCITEMENT. See Indictment. 
INDIVIDUAL, adj. [individu, Fr. individuus, Lat.] 
Separate from others of the fame fpecies ; Angle ; nume¬ 
rically one.—Neither is it enough to coniu\t,J'ccundum ge¬ 
nera, what the kind and character of the perfon fliould 
be ; for the molt judgment is Ihown in the choice of in¬ 
dividuals. llacon. 
Mult the whole man, amazing thought ! return 
To the cold marble, or contrafted urn ! 
And never lhali thole particles agree, 
That were in life this individual he ? Prior. 
Undivided ; not to be parted or disjoined: 
To give thee being, I lent 
Out of my fide to thee, neareft my heart, 
Subftantial life, to have thee by my fide 
Henceforth an individual folace dear. Milton. 
INDIVID UAL, f. A Angle perfon, a Angle thing. 
INDIV 1 DUALTTY, / Separate or diftinCt exigence. 
—He would tell his inftru&or, that all men were not An¬ 
gular : that individuality could hardly be predicated of 
any man ; for it was commonly laid, that a man is not 
the lame he was, and that madmen are befide themfelves. 
Ar but knot. 
INDIVID'UALLY, adv. With feparate or diftindt ex- 
'jftence : numerically.—How Ihould that fubfift folitarily 
by itfelf, which hath no fubftance, but individually the 
very lame whereby others fubfilt with it ? Hooker. —Not 
feparablyj incommunicably.—I dare not pronounce him 
omnilcious, that being an attribute individually proper to 
the godhead, and incommunicable to any created fub- 
ltance. Hakewill. 
To INDIVID'UATE, v. a. [from individuus, Lat.] To 
diftinguifti from others of the lame fpecies ; to make An¬ 
gle.—Life is individuated into infinite numbers, that have 
their diftinft fenfe and pleafure. More. —No man is capa¬ 
ble of tranfiating poetry, who, befides a genius to that 
art, is not a mailer both of his author’s language and of 
his own ; nor mult we underltand the language only of 
the poet, but his particular turn of thoughts and expref- 
fion, which are the characters that diltinguilh and indivi¬ 
duate him from all other writers. Dryden. 
INDIVIDUA'TION, / That which makes an indivi¬ 
dual.-—What is the principle of individuation? Or what is 
it that makes any one thing the fame as it was before ? 
Watts. 
INDIVIDUUTY,/. [from individuus, Lat.] The ftate 
of being an individual; feparate exiltence. 
INDIVID'UUM,/. [Latin.] With logicians, a parti¬ 
cular being of any fpecies ; that which is incapable of 
being divided into two beings of a like kind. 
INDIVIN'ITY, f. Want of divine power. Not in vfe. 
—How openly did the oracle betray his indivinity unto 
Croefus, who, being ruined by his amphibology, and ex- 
I N D 
pollulating with him, received-no higher anfwer than the 
excufe of his impotency ? Brown. 
INDIVISIBILITY, oiTndivis'ibleness,/ [from in- 
divifibled\ State in which no more divifion can be made.— 
A peltle and mortar will as foon bring any particle of 
matter to indivifibilily as the acuteft thought of a mathema¬ 
tician. Locke. 
INDIVIS'IBLE, adj. [Fr. in and divifible, ] What can¬ 
not be broken into parts ; fo fmall as that it cannot be 
fmaller; having reached the laft degree of divifibility.— 
By atom, no body will imagine we intend to exprefs a 
perfect indivifible , but only the lealt fort of natural bo¬ 
dies. Digby. 
INDIVIS IBLES, f. In geometry, thofe indefinitely 
fmall elements, or principles, into, which any body or 
figure may ultimately be divided. Thus, a line is faid to 
confift of points, a furface of parallel lines, and a folid of 
parallel furfaces ; and, becaufe each of thefe dements is 
fuppofed indivifible, if in any figure a line be drawn per¬ 
pendicularly through all the elements, the number of 
points in that line will be the fame as the number of the 
elements. Whence it appears, that a parallelogram, or a 
prifm, or a cylinder, is relolvable into elements, as in¬ 
divifibles, all equal to each other, parallel, and like or 
fimilar to the bafe ; for which reafon, one of thefe ele¬ 
ments multiplied by the number of them, that is the bafe 
of the figure multiplied by its height, gives the area or 
content. Aiid a triangle is refolvable into lines parallel 
to the bafe, but decreasing in arithmetical progreflion; fo 
alfo do the circles, which conftitute the parabolic conoid, 
as well as thofe which conftitute the plane of a circle, or 
the furface of a cone. In all which cafes, as the laft or 
leaft term of the arithmetic progreftion is o, and the length 
of the figure the fame thing as the number of the terms, 
therefore the greateft term, or bafe, being multiplied by 
the length of the figure, half the product is the turn of 
the whole, or the content of the figure. And in any other 
figure or folid, if -the law of the decreafe of the elements 
be known, and thence the relation of the fum to the 
greateft term, which is the bafe, the whole number of 
them being the altitude of the figure, then the faid fum 
of the elements is always the content of the figure. A 
cylinder may alfo be reiolved into cylindrical curve fur- 
faces, having all the fame height, and continually decreaf¬ 
ing inwards, as the circles of the bafe do, on which they 
infift. 
This way of confidering magnitudes, is called the me¬ 
thod of indivifibles, which is only the ancient method of ex¬ 
it a uf ions a little difguifed and contrafted. See Exhaus¬ 
tion, vol. vii. It is found of good ufe, both in comput¬ 
ing the contents of figures in a very (hort and eafy way, 
and in lhortening other dernonftrations in mathematics; 
an inftance of which is that celebrated propoAtion of Ar¬ 
chimedes, that a fphere is two-thirds of its circumfcribed 
cylinder. The method of indivifibles was introduced by 
Cavalerius, in 1635, in his Geonietria Indivifbiliism. The 
fame was alfo purlued by Torricelli in his works, printed 
1644; and again by Cavalerius himfelf in another treatife, 
publiftied in 1647. 
INDIVIS'IBLY, adv. So as it cannot be divided. 
INDIVI'SUM, J. [Latin.] A law term; that which is 
held by two perlons without being divided. 
INDO'CIBLE, adj. Unteachable; infufceptible of in- 
ftruiftion. 
INDO'CIL, f. [ indocile , Fr. indocilis, Lat.] Unteacha¬ 
ble ; incapable of being inftruffed.—Thefe certainly are 
the fools in the text, indocil intractable fools, whofe ftoli- 
dity can baffle all arguments, and is proof againft demon- 
ftration itfelf. Bentley's Sermons. 
INDOCIL'ITY,/ [Fr. in and docility .1 Unteachable- 
nefs ; refufal of inftruction. 
INDO'CILNESS,/. Indocility, unaptnefs to learn. Scott. 
INDOCK'ED, adj. A fea term ; put into a dock. 
To INDOCTRINATE, v.a. [ cndoclrmer , old French.] 
To 
