Mr. Rhea called up for consideration the resolution which he laid upon the table yesterday, proposing an additional duty on coarse hemp and flax.

The resolution was considered, and, on motion, the words "and cotton," were added to it, by consent of the mover.

Mr. Grundy observed, that several detached resolutions for the encouragement of domestic manufactures had been offered to the House. He wished the adoption of a proposition which should include all the manufactures of the country. He hoped the present motion might lie on the table for a few days, until such a proposition could be prepared. It is, said he, an object of great magnitude, when we consider the vast sums of money which have lately been vested in establishments of this kind; and the present is a favorable moment for adopting some measures to give our manufactures countenance and support.

Mr. Rhea could not agree to the proposed postponement. He should never obtain his object, if he were to agree to one postponement after another. His colleague could, at any time, submit his proposition, without hindering the progress of the one he had introduced.

After some conversation as to the propriety of discussing this proposition in the House,

The Speaker decided, that though there is a rule of the House which says that all propositions for laying a tax shall be discussed in Committee of the Whole; this resolution, in his opinion, did not come within that rule, as it was merely an instruction to a committee to inquire into the expediency of laying an additional tax.

The motion, for laying the proposition on the table, was carried, 51 to 47.

American Seamen.

Mr. Milnor rose, and observed there was no topic more important than the protection of American seamen, and yet he believed it would be acknowledged by all who have given consideration to the subject, that our laws on this subject are materially defective. The object of these laws ought to be twofold; in the first place, for the protection of bona fide American citizens, and secondly, for the prevention of the abuse of those protections by citizens of other countries not entitled to them. It will be recollected, that the act for relief of American seamen makes it the duty of the collectors to furnish certificates of citizenship in the manner therein directed; but, owing to an error of Congress, no manner is prescribed; and, of course, the collectors have been left to accept of such proof as they deemed sufficient, or to act under the directions of the Secretary of the Treasury, which, in most instances, is an unsafe way of proceeding. The penal laws of the United States provide no punishment for the crime of perjury in these cases. A recent instance, Mr. M. said, had occurred in the district which he represented. An Italian, not twenty days in the country, appeared before a notary public, claiming the rights of an American seaman. He made the necessary oaths, and produced a sponsor who swore that he was born in Baltimore. The tongue of the man detected the falsehood. The collector, with that attention to his duty for which he is so remarkable, had both seaman and sponsor apprehended. The attorney for the district looked into the case, and found the crime of perjury to be, the falsely taking an oath according to the laws of the United States; but, as the law was defective, as above stated, the offence was not perjury. The Attorney-General confirmed this opinion. The offenders, therefore, escaped punishment. He believed other amendments might be usefully made to the law on this subject. He concluded by offering the following resolution for adoption, which was agreed to: