It is one of the difficulties of those who undertake to make public speeches, that sometimes they are embarrassed about the heads of their discourses; and so I am somewhat troubled at finding the inferior position of the American eagle, inasmuch as he has but one head, while the Russian eagle has two. I suppose that the explanation of this ornithological difference arises from the necessity of the Russian eagle having one head to watch over his large possessions in Asia, and the other head to look after his small property in Europe. I feel a good deal of confidence in speaking of the American eagle in contrast. I can see that if the American eagle has but one head, it embodies therein the national sentiment now prevailing, of one country and one people. It is very true that our brethren of the South--for I still call them our brethren--have been under the impression that ours was a double-headed eagle, with a Northern and a Southern head, with this distinction over the Russian; that the Southern was the larger and more important head of the two, and we are now engaged in the somewhat expensive and troublesome task of correcting that mistake in natural history. There is a good deal that is appropriate, and sometimes something that is suggestive, in these national symbols. The lion, for instance, is a very hungry beast, and the large portion of the globe which he has got into his possession shows the appropriateness of the selection of the symbol. The cock, as we know, is a very boisterous and demonstrative bird, who never does anything that he does not make a noise about. And certainly the Gallic neighbor of the English lion has never been distinguished for his modesty whenever he has accomplished any thing in arts or in arms. The eagle is a high-soaring bird, and I had better bring before you what an English poet says of him: He clasps the crag with hooked hands, Close to the sun in lonely lands, Ringed in an azure world he stands; The wrinkled sea beneath him crawls, He watches from his mountain walls, And like a thunderbolt he falls. If the illustration had been carried further we might be content with this English authority that the eagle, as typical of Russia and of the United States, is to be armed with that thunderbolt which the Greeks thought to be the prerogative of Jupiter. The American eagle has been distinguished for the quickness of his flight; and I do not think that our bitterest enemies can ever bring against us the charge of slowness. There are some points of resemblance between the United States and Russia. Russia, like us, is made up of many nationalities: and we have had recently the most satisfactory evidence that the Russian eagle is soaring in the same quarter as we are--soaring beyond the crowing of the cock or the roaring of the lion.