75.920
50 78.350 94.900
60 94.020 113.880
70 109.690 132.860
80 125.360 151.840
90 141.030 170.820
100 156.700 189.800
1000 1567.000 1898.000

No. IV. ADDITIONAL.

TABLE _for Reducing the Degrees of Reaumeur's Thermometer into its
corresponding Degrees of Fahrenheit's Scale._

R. F. R. F. R. F. R. F.

0 = 32 21 = 79.25 41 = 124.25 61 = 169.25
1 = 34.25 22 = 81.5 42 = 126.5 62 = 171.5
2 = 36.5 23 = 83.75 43 = 128.75 63 = 173.75
3 = 38.75 24 = 86 44 = 131 64 = 176.
4 = 41 25 = 88.25 45 = 133.25 65 = 178.25
5 = 43.25 26 = 90.5 46 = 135.5 66 = 180.5
6 = 45.5 27 = 92.75 47 = 137.75 67 = 182.75
7 = 47.75 28 = 95 48 = 140 68 = 185
8 = 50 29 = 97.25 49 = 142.25 69 = 187.25
9 = 52.25 30 = 99.5 50 = 144.5 70 = 189.5
10 = 54.5 31 = 101.75 51 = 146.75 71 = 191.75
11 = 56.75 32 = 104 52 = 149 72 = 194.
12 = 59 33 = 106.25 53 = 151.25 73 = 196.25
13 = 61.25 34 = 108.5 54 = 153.5 74 = 198.5
14 = 63.5 35 = 110.75 55 = 155.75 75 = 200.75
15 = 65.75 36 = 113 56 = 158 76 = 203
16 = 68 37 = 115.25 57 = 160.25 77 = 205.25
17 = 70.25 38 = 117.5 58 = 162.5 78 = 207.5
18 = 72.5 39 = 119.75 59 = 164.75 79 = 209.75
19 = 74.75 40 = 122 60 = 167 80 = 212
20 = 77

_Note_--Any degree, either higher or lower, than what is contained in
the above Table, may be at any time converted, by remembering that one
degree of Reaumeur's scale is equal to 2.25 deg. of Fahrenheit; or it
may be done without the Table by the following formula, R x 9 / 4 + 32 = F;
that is, multiply the degree of Reaumeur by 9, divide the product by 4,
to the quotient add 32, and the sum is the degree of Fahrenheit.--E.

No. V. ADDITIONAL.

RULES _for converting French Weights and Measures into correspondent
English Denominations[62]._

Sec. 1. _Weights._

The Paris pound, poids de mark of Charlemagne, contains 9216 Paris
grains; it is divided into 16 ounces, each ounce into 8 gros, and each
gros into 72 grains. It is equal to 7561 English Troy grains.

The English Troy pound of 12 ounces contains 5760 English Troy grains,
and is equal to 7021 Pari