The Abortive Commercial Negotiations with Spain.—Senor Sanchez Silva, known for his speeches in the Cortes, as deputy for Cadiz, has published, in an address to his constituents, an account of the negotiations between the Spanish and British Governments relative to a treaty of commerce. The effect of this publication will be to undeceive the minds of Spaniards from the idea that the Regent's Government was about to sacrifice the interests of Spain, or even of Catalonia, to England. The terms proposed by the Spanish commissioner were, indeed, those rather of hard bargainers than of men eager and anxious for a commercial arrangement. Senor Silva says that England, in its first proposals, demanded that its cottons should be admitted into Spain on paying a duty of 20 per cent., England offering in return to diminish its duties on Spanish wines, brandies, and dried fruits. But England, which offered in 1838 to reduce by one-third its duty on French wines, did not make such advantageous offers to Spain; and the Spanish negotiators demanded that 20 per cent. ad valorem should be the limit of the import duty of Spanish wines and brandies into England, as it was to be the limit of the duty on English cottons into Spain. This demand nearly broke off the negotiation, when Spain made new proposals; these were to admit English cottons at from 20 to 25 per cent. ad valorem duty, if England would admit Spanish brandies at 50 per cent. ad valorem duty, sherry wines at 40 per cent., and other wines at 30 per cent., exclusive of the excise. Moreover, that tobacco should be prohibited from coming to Gibraltar, except what was necessary for the wants of the garrison. The English Government, in a note dated last month, declared the Spanish proposals inadmissible. If the Spanish Government did not admit the other articles of English produce, the duty on Spanish wines could not be reduced. English cottons were an object of necessity for the Spanish people, and came in by contraband; whereas Spanish wines were but an article of luxury for the English. Senor Sanchez Silva concludes, that it is quite useless to renew the negotiations, the English note being couched in the terms of an ultimatum.