NOTE.-I subjoin, for the sake of comparison, the following statistics of the printing in the United States, according to the Census of 1840:

LETTER XXX.

COMMERCE AND MANUFACTURES OF MEXICO.

THE COMMERCE of Mexico has been sensibly diminishing for the last ten years. This is attributable to the continual revolutionary disturbances of the country, the decrease of the wealth of the people, and the pecuniary embarrassments to which most of the inhabitants have been subjected, by the non-payment of Government loans and unfortunate invest

ments.

In 1832 and 1833, the products of the Custom House amounted to about twelve millions per annum. In 1839, on account of the French blockade, they fell to near three millions; in 1840, they rose again to seven millions; and, in the following year, fell to little more than five, which sum may be divided among the different ports as follows, to wit:

This corresponds to about twelve millions three hundred thousand dollars of importation annually, divided (according to an estimate,) in the following manner:

The expense to the Government, for the collection of this revenue,

was $348,290.

The EXPORTS from the Republic, (chiefly of course of its own productions,) may be rated at:

From this estimate, you perceive, that about $18,500,000, in the precious metals, are exported annually from Mexico. The mines produce near twenty-two millions of silver, of which, it is calculated, that twelve millions are coined in the seven mints of the Republic, per annum.

From the above calculations, it will be observed, that there is a difference of about $8,000,000 between the imports and exports, a large portion of which is estimated to be covered by smuggling.

The following comparative estimate of the Exports and Imports of the United States and of Mexico, for the years 1841 and 1842, cannot fail to be interesting in this connection, especially when you take into consideration the comparative extent of territory and population:

Exports from Mexico, in 1842,

Of which, in gold and silver,

$20,000,000

18,500,000

Balance in other products of industry,

$1,500,000

Excess of Imports over the industrial Exports, exclusive of the

Or, in other words, the United States exported $94,312,734 worth, representing her industry, (exclusive of gold and silver,) while Mexico, with a territory nearly as large, exported but $1,500,000. In addition to this, it must be recollected, that but $2,746,846 of the precious metals were the product of our own country, while at least $15,000,000 were the product of the Mexican mines; leaving an excess of nearly three millions above the total annual coinage of the nation.

This will give us the ratio of about $6 124 for each person in the United States, and $2 50 for each person in Mexico.

In order to afford some idea of Mexican commerce more in detail, (so far as the Eastern Coast is concerned,) I have constructed the following Table, the accuracy of which may be confidently relied on. In regard to the Western Coast, it is impossible to state anything with certainty. The chief contraband trade of the Republic has been carried on there with the most unblushing audacity, until very recently; and, of course, statistical returns will tend rather to deceive than enlighten.