Enumeration.

To enumerate any parcel of figures, observe the following rule.

First, commit the words at the head of the table, viz. units, tens, hundreds, &c. to memory; then, to the simple value of each figure, join the name of the place, beginning at the left hand, and reading towards the right.-More particularly.—1. Place a dot under the right hand figure of the 2d, 4th, 6th, 8th, &c. half periods, and the figure over such dot will, universally, have the name of thousands.-2. Place the figures 1, 2, 3, 4, &c. as indices, over the 2d, 3d, 4th, &c. period; These indices will then shew the number of times the millions are involvedthe figure under 1, bearing the name of millions, that under 2, the name of billions (or millions of millions,) that under 3, trillions, (or millions of millions of millions.)

EXAMPLE.

Sextill. Quintill. Quatrill. Trillions Billions Millions Units.

th. un. th. un. th. un. th. un. th. un. th. un. c.x.t. c.x.u.

913,208;000,341;620,057;219,356;809,379;120,406; 129, 763

Note 1.-Billions is substituted for millions of millions

Trillions, for millions of millions of millions-Quatrillions, for millions of millions of millions of millions.

Quintillions, Sextillions, Septillions, Octillions, Nonillions, Decillions, Undecillions, Duodecillions, &c. answer to millions so often involved as their indices respectively denote.

Note 2.-The right hand figure of each half period has the place of units of that half period; the middle one, that of tens, and the left hand one, that of hundreds.

THE APPLICATION.

Write down, in proper figures, the following numbers. Fifteen.

Two hundred and seventy-nine.

Three thousand, four hundred and three.

Thirty-seven thousand, five hundred and sixty-seven.

Four hundred, one thousand and twenty-eight.

Nine millions, seventy-two thousand and two hundred.
Fifty-five millions, three hundred, nine thousand and nine,
Eight hundred millions, forty-four thousand, and fifty-five.
Two thousand, five hundred and forty-three millions, four
hundred and thirty-one thousand, seven hundred and two.

Write down, in words at length, the following numbers.

I. One.
II. Two.

III. Three.

IV. Four.

V. Five.

VI. Six.

VII. Seven.
VIII. Eight.

IX. Nine.

X. Ten.

XI. Eleven.

XVI. Sixteen. CCC. Three hundred.
XVII. Seventeen. CCCC. Four hundred.
XVIII. Eighteen.D or Io. Five hundred.
XIX. Nineteen. DC. Six hundred.
XX. Twenty.
XXX. Thirty.
XL. Forty.
L. Fifty.

LX. Sixty.
LXX. Seventy.

XII. Twelve. LXXX. Eighty.
XIII. Thirteen.XC. Ninety.
XIV. Fourteen. C. Hundred.

DCC. Seven hundred.
DCCC. Eight hundred.
DCCCC Nine hundred.
M or CI. One thousand.
Iɔɔ. Five thousand.
Iეეე. Fifty thousand.
ɔɔɔɔɔɔ. Five hundred
thousand.

MDCCLXXXVIII. One
thousand seven hundred
and eighty-eight.

A less literal number, placed after a greater, always augments the value of the greater; if put before, it diminishes it. Thus, VI is 6; IV is 4. XI is 11; IX is 9, &c.