Conversion of Tolas and Pounds Troy.

TABLE XVI.-For the mutual conversion of Tolas and Pounds Troy.

TOLAS into POUNDS TROY and DE

65

TROY POUNDS into TOLAS.

CIMALS.

Tolas. Pounds. Tolas. Pounds.

To convert the decimals of a lb. into ounces and dwts., and vice versa.

12 oz.

1.000

6 oz. 0.500 20 dwt.

0.083

9 dwt.

0.037

11

10

9

The same degree of correspondence cannot be expected between the Indian weights and the avoirdupois system of England; but, as the latter are employed in all the transactions of commerce, excepting those of bullion and some other trifling articles, it becomes necessary to give tables for their conversion at greater length. In these, as on former^ occasions, the system of expressing fractions in decimals has been preferred, from the very great facility it affords in taking out the equivaents of quantities to which the tables do not extend. Decimal numeration is too well understood in the present day to require explanation, but one example may be advantageously given as applying to all the tables hereafter constructed on the same principle:

Required the equivalent of 57353 muns 35 seers 6 chitaks, in avoirdupois pounds.

Taking the numbers opposite to 57, 35, and 30 respectively, and removing the decimal point,—in the first, three places to the right hand; —in the second, one place to the right; —and in the third, one place to the left, we have

Since 35 seers are exactly equal to 72 pounds avoirdupois, the following simple and accurate rules for their mutual conversion will be found equally convenient with the table.

Rule I. To convert Indian weight into avoirdupois weight.

1. Multiply the weight in seers by 72, and divide by 35: the result will be the weight in lbs. av.

2. Or, multiply the weight in muns by 36, and divide by 49: the result will be the weight in cwt. av.

RULE II. To convert avoirdupois weight into Indian weight.

:

1. Multiply the weight in Ibs. av. by 35, and divide by 72 the result will be the weight in seers.

2. Or, multiply the weight in cwts. by 49, and divide by 36: the result will be the weight in muns, or maunds*.

One ton—27,222 muns, or 27^ mun nearly.

One mun=82 lbs. avoir, exactly.

For facility of recollection this rule may be expressed in arithmetical poetry thus:

Of hundred weights should you incline

A sum in Indian muns to fix ;—

First multiply by forty-nine,

And then divide by thirty-six.

For converting New Bazar Maunds into Avoirdupois Pounds. 67

Table XVII.—For converting New Bazar Muns (or MaundsJ, seers and chitaks, into Avoirdupois Pounds, and decimals.

[The last column serves for the conversion of the decimals of a lb. avoir, into ounces and drams. It will be found useful also with Tables xviii. and xix.]

TABLE XVIII.—For the conversion of Muns or Maunds into Tons, Hundredweights, and Pounds.

TABLE XIX.—For converting Avoirdupois weights into British Indian

The British Indian system of weights having been ordered by Reg. VII. 1833, to supersede the bazar weights previously used,

Conversion of Tolas and old Sicca Weight of Bengal.

(of which the unit was the old Moorshedahad rupee weight of 179.666 troy grains, called the sicca weight,) in all Government transactions, a corresponding adjustment was made of all the weights in use at the several Government offices of the metropolis—the custom-house, the mint, the treasury, the bank, and the police; and sets of standard seer and tola weights of brass were ordered to be prepared at the mint for distribution to all the collector's offices of the Bengal presidency.

The regulation in question expressly avoided enforcing the change by any penal enactment, trusting that the sense of public convenience would quickly ensure its substitution for the irregular system now prevalent; and directing only that the verification and adjustment of all. weights at the Calcutta and Sagur assay offices, should be made for the future in accordance with the new scale.

In the ordinary dealings of commerce, the difference between the bazar weights and the new weights is not recognizable: indeed the errors of single large weights is generally found to exceed the amount of modification now introduced: no inconvenience therefore remains from the still general use of the old bazar weights, while the principal European mercantile establishments of the town, as well as all the native bullion merchants, have already had their weights adjusted to the new system. Where it may be required, however, to know the precise difference between the old and new system, recourse may be had to the following table. The new man will be seen to be one chitak and a quarter, nearly, heavier than the old bazar maund: which would induce an increase in the price of articles to the trifling extent of one-fifth per cent, or three annas in a hundred rupees.

Table XX. For the mutual conversion of Tolas and old Sicca Weight of Bengal.