Mr. Botts is a native of Dumfries, Prince William County, Virginia, and was born in September, 1802. As early as 1834, he joined the Whig party, and in 1839, he came to Congress as a Whig. He was known in the House as a follower of Mr. Clay, or rather a supporter of Mr. Clay and his peculiar doctrines. Mr. Botts, in other words, was in favor of a highly protective tariff, the distribution of the public lands, and internal improvements. He is to-day in favor of these measures of what he would call reform. So strong was he in his devotion to the tenets of the Whig party, that when President Tyler disappointed his friends by his tariff policy, Mr. Botts, though a friend of years, at once terminated the friendship. He could not hold in respect the man who, it seemed to him, had betrayed his friends. Mr. Botts was opposed to the Kansas-Nebraska act and to the passage of the Lecompton bill. Nevertheless he is a slaveholder and a defender of the institution as it now exists in Virginia. But he is not a believer in the finality of the present system, nor is he afraid to express his opinions of slavery. This will be seen at once by the perusal of a letter to the "Richmond Whig," from Mr. Botts, from which we quote. It is dated April 18, 1859: "I have recently received many letters from different parts of the State, asking for a copy of my Powhatan speech, delivered in 1850, which it is impossible for me to furnish, as I have only some half dozen copies left. As the best means of supplying the information so earnestly sought by those friends who are anxious to ascertain _what horrible sentiments I uttered on the subject of slavery_, which have been recently, to a great extent, substituted for the 'free negro' misrepresentation, I have concluded to publish, for the benefit of the Imposition party in particular, everything in that speech that relates to the question of slavery; garbled extracts of which have already appeared in a small portion of the press of that party--many of them, seeming to think there was no great amount of capital to be made out of it, have declined to notice it. The following is the portion objected to. I said: "'There are, sir, two parties in our country, distinct from all the rest, of whom I wish to say a word. The one in the North, called 'Abolitionists,' and the other, in the South, known as 'Disunionists.' I am not sure for which of the two parties I have the least sympathy or respect; and I am not sure to which attaches the largest share of the responsibility for the chief difficulties with which the nation has been lately afflicted.