Sagacity, 449, s 3

Same, whether substance, mode,

or concrete, 276, s 28
Sand, white to the eye, pellucid in
a microscope, 229, s 11
Sceptical, no one so sceptical as to

doubt his own existence,541,s2
Schools, wherein faulty,412,s6, &c.
Science, divided into a consider-
ation of nature, of operation,
and of signs, 623 [s 29
Noscience of natural bodies, 488,
Scripture; interpretations of scrip-
ture not to be imposed, 409,
[266-8, s 23-5
Self, what makes it, 265, s 20;
Self-love, 323, s 2 [ness in us,
ib.

$ 23

Partly cause of unreasonable-
Self-evident propositions, where to
be had, 516, &c.

Neither needed nor admitted
Sensation, 60, s 3 [proof, 531, s 19
Distinguishable from other per-
ceptions, 452, s 14
Explained, 90, s 21
What, 165, s 1

Senses why we cannot conceive
other qualities, than the ob-
jects of our senses, 74, s 3
Learn to discern by exercise,
435, s 21

Much quicker would not be use-
ful to us, 623, s 12
Our organs of sense suited to
our state, ib. &c. s 12, 13
Sensible knowledge is as certain
as we need, 553, s 8
Sensible knowledge goes not be-
yond the present act, 554, s 9
Shame, 170, s 17

Not made by the mind, ib. 2
Power of the mind over them,
114, s 1 [ledge, 84, s 10
The materials of all our know-
All positive, ib. [85, s 2, 3
Very different from their causes,
Sin, with different men, stands for
different actions, 37, s 19
Solidity, 76, s 1

Inseparable from body, ib.
By it body fills space, 77, s 2
This idea got by touch, 76, s 1
How distinguished from space,
77, s 3

How from hardness, 78, s 4
Something from eternity, demon-
Sorrow, 169, s 8 [strated, 543, s 8
Soul thinks not always, 63, s 9, &c.
Not in sound sleep, 64, s 11, &c.
Its immateriality, we know not,
455, &c. s 6; 465, &c.
Religion, not concerned in the

soul's immateriality, 473, s 6
Our ignorance about it, 269, s 27
The immortality of it, not proved

by reason, 466, &c. [tion, ib.
It is brought to light by revela-
Sound, its modes, 163, s 3
Space, its idea got by sight and
touch, 114, s 2

Its modification, ib. s 4
Not body, 118, s 11, 12
Its parts inseparable, ib. s 13
Immoveable, 119, s 14

Whether body, or spirit, 120, s16
Whether substance, or accident,
ib. s 17

Infinite, 121, s 21; 152, s 4
Ideas of space and body distinct,
123, 124, s 24, 25

Considered as a solid, 145, s 11
Hard to conceive any real being
void of space, ib.
Species; why changing one simple
idea of the complex one, is
thought to change the species
in modes but not in sub-
stances, 419, s 19

Of animals and vegetables, dis-

tinguished by figure, 380, s 29
Of other things, by colour, ib.
Made by the understanding, for

communication, 361, s 9
No species of mixed modes

More species of creatures above
than below us, 372, s 12
Of creatures very gradual, ib.
What is necessary to the making
of species, by real essences,
373, s 14, &c.

Of animals and plants, not dis-
tinguished by propagation,
376, s 23

Of animals and vegetables, dis-
tinguished principally by the
shape and figure; of other
things, by the colour, 380, s 29
Of man, likewise, in part, 377,
s 26
[378, s 26
Instance, Abbot of St. Martin,
Is but a partial conception of
what is in the individuals,
382, s 32

It is the complex idea which the
name stands for, that makes the
species,385,835 [385-6,s 36-7
Man makes the species, or sorts,
The foundation of it is in the si-

militude found in things, ib.
Every distinct, abstract idea, a
different species, 386, s 38
Speech, its end, 330, s 1, 2
Proper speech, 335, s 3
Intelligible, ib. [able, 556, s 12
Spirits, the existence of, not know-
How it is proved, ib.

Operation of spirits on bodies,
not conceivable, 488, s 28
What knowledge they have of
bodies, 436, s 23
Separate, how their knowledge.
may exceed ours, 103, s 9
We have as clear a notion of
the substance of spirit, as of
body, 226, s 5

A conjecture concerning one
way of knowledge wherein
spirits excel us, 231, s 13
Our ideas of spirit, 232, s 14
As clear as that of body, ib.;
234, s 22

Primary ideas belonging to spi-
Move, 234, s19 [rits, 233, s 18
Ideas of spirit and body, com-

pared, 234, s 22; 239, s 30
Existence of, as easy to be ad-
mitted as thatofbodies,238,s28
We have no idea how spirits
communicate their thoughts,
242, s 36

How far we are ignorant of the
being, species, and properties
of spirits, 487, s 27
The word spirit, does not ne-
cessarily denote immateriality,
456
[spirits, ib.
The scripture speaks of material
Stupidity, 102, s 8
Substance, 219, s 1
No idea of it, 52, s 18
Not very knowable, ib.
Our certainty, concerning sub-
stances,reaches but a little way,
496, s 11, 12; 515, s 15
The confused idea of substance
in general, makes always a
part of the essence of the
species of substances, 375,s21
In substances, we must rectify
the signification of their names,
by the things, more than by
definitions, 436, s 24 [113, s 6
Their ideas single, or collective,
We have no distinct idea of sub-

stance, 120, 121, s 18, 19
We have no idea of pure sub-

stance, 221, s 2

Our ideas of the sorts of sub-

stances, 223,&c. s 3, 4; 226, s 6
Observable, in our ideas of sub-

stances, 242, s 37 [243, &c.
Collective ideas of substances,
They are single ideas, ib. s 2
Three sorts of substances,253,s2
The ideas of substances, have a

double reference, 309, s 6
The properties of substances,
numerous, and not all to be

known, 312, s9, 10 [227, s 7
Theperfectestideas of substances,
Three sorts of ideas make our

complex one of substances,
228, s 9 [essay, 222, &c.
Substance, not discarded by the
The author's account of it clear as

that of noted logicians, 223,&c.

We talk like children about it,

221, s 2; 224

The author makes not the being
of it depend on the fancies
of men, 220, &c.
Idea of it obscure, 456, &c.
The author's principles consist

with the certainty of its exist-
Subtilty, what, 413,s 8 [ence, 220
Succession, an idea got chiefly

from the train of our ideas,

84, s 9; 128, s 6 [it, 130, s 12
Which train is the measure of
Summum bonum, wherein it con-
sists, 198, s 55

Sun, the name of a species, though
but one, 365, s 1 [585, s 4
Syllogism, no help to reasoning,
The use of syllogism, ib.
Inconveniences of syllogism, ib.
Of no use in probabilities,
592, s 5
[593, s 6
Helps not to new discoveries,
Or the improvement of our
knowledge, ib, s 7
Whether, in syllogism, the mid-
dle terms may not be better
placed, 594, s 8

May be about particulars, ib. s 8

T.

Taste and smells, their modes,
164, s 5 [force, 579, s 10
Testimony, how it lessens its
Thinking, 165
[s 2

Modes of thinking, ib. s 1; 166,
Men's ordinary way of thinking,
501, s 4
[s 10
An operation of the soul, 63,
Without memory useless, 66,
Time, what, 131, s 17, 18 [s 15
Not the measure of motion, 134,
s 22

And place, distinguishable por-
tions of infinite duration and
expansion, 141, s 5, 6
Two-fold, 142, s 6, 7
Denominations from time are
relatives, 250, s 3
Toleration, necessary in our state
of knowledge, 575, s 4
Tradition, the older, the less cre-
dible, ib. s 10

Trifling propositions, 531

Truth, what, 501, s 2; 502, s 6
Of thought, 501, s 3; 504, s 9
Of words, 501, s 3

Verbal and real, 504, s 8, 9.
Moral, 505, s 11

Metaphysical, 314, s 2

General, seldom apprehended,
but in words, 506, s 2

In what it consists, 502, s 5
Love of it necessary, 608,s1 [s1
How we may know we love it, ib.
Y.

Vacuum possible, 123, s 22 [s 23
Motion proves a vacuum, 123,
We have an idea of it, 77, s 3;
79, s 5
Variety in men's pursuits, ac-
counted for, 198, s 54, &c.
Virtue, what, in reality, 36, s 18
What in its common applica-
tion, 31, s 10, 11

Is preferable, under a bare pos-

sibility of a future state, 208,
How taken, 36, s 17, 18 [s 70
Vice lies in wrong measures of
good, 625, s 16
Understanding, what, 173-4, s 5, 6
Like a dark room, 110, s 17
When rightly used, 3, s 5 [s 5
Three sorts of perception in, 173,
Wholly passive in the reception

of simple ideas, 71, s 25
Uneasiness alone determines the
will to a new action, 183, &c.
s 29, 31, 33, &c. [s 36, 37
Why it determines the will, 187,
Causes of it, 200, s 57, &c.
Unity, an idea, both of sensation

and reflection, 83, s 7 [s 1
Suggested by every thing, 147,
Universality, is only in signs, 340,
Universals, how made, 107, s 9 [s11
Volition, what, 173, s 5; 177,
s 15; 183, s 28

Better known by reflection, than
words, 184, s 30 [182, s 27
Voluntary, what, 173,s 5; 176, s11;
W.

What is, is, is not universally
assented to, 10, s 4

Where and when, 142, s 8
Whole, bigger than its parts, its
use, 522, s 11
[44, s 6