If the gentleman from Maryland (Mr. KEY) will apply to his political--I beg pardon--to his mercantile barometer, the insurance offices, he would find that, after the operation of the Orders in Council was known, insurance could not have been effected at Baltimore to the Continent of Europe for 80 per cent., and not at London, on American property, for 90 guineas per cent. The proof of this is before me. Does not this prove that so much danger existed on the ocean that it was next to impossible to pass without seizure and condemnation? And surely he will not contend that this advance of premium was caused by the embargo? If the embargo then has saved any thing to the country--and that it has there can be no doubt--exactly in the proportion that it has saved property and seamen to you, it has lessened the ability of the enemy to make war upon you, and what is primarily important, lessened the temptation to war. The rich plunder of your inoffensive and enlarged commerce, must inevitably have gone to swell the coffers which are to support the sinews of war against you. The reaction thus caused by the embargo, is in your favor, precisely to the amount of property and men which it has saved to you from your enemies. But we are told that the enterprising merchant is deprived of an opportunity--of what? Of ruining himself and sacrificing the industry of others. Has any capitalist said he would venture out in the present tempest which blackens the ocean? No, sir, they are your dashing merchants; speculators, who, having nothing to lose and every thing to gain, would launch headlong on the ocean, regardless of consequences. No commerce can be now carried on, other than that which is subservient to the Orders in Council. I appeal to the gentleman from Rhode Island (Mr. JACKSON)--no man is better informed on this subject--would he venture his property on the ocean in a trade contravening those orders? I would ask him further, would Brown and Ives, merchants, as remarkable for their prudence as for their enterprise, and for their capital as either; would they send their vessels to the Continent of Europe? I believe their opinion would corroborate the opinion of Mr. Gray.