letter firoiu Austin.Atjstxn, Nov. 2-itb, 1868.My trip from Waco to this city has been one of tho most pleasunt it has ever been my pleasure to experience ; the fact is, that I be-believo the section of country consisting of Brazos, Kobertson, Falls, McLennan, Bell, Williamson and Travis, and counties lying between them, is the garden spot of Texas. Here is the section to which to direct emigration, thousands of acres of rich pruirio and bottom lands await the advent of the plough and axe, then and there to remunerate their labors with a bountiful return of tho various products of agiiculturo to which the soil of Texas, providentially diversified os it is, is so admirably adapted. The climate ishealty in every tense ; noue of those loathsome diseases, so prevalent in the lower counties, such us chills and fever, exist here, but, ou the contrary, everything living present a glowing picture of health and vigor..........On tho day of arrival in Belton a military commission bad jnst adjourned, it was convened for a trial of, a man named Clark, for the murder of two negroes, both within a few minutes of each other, and in cold blood. The . - murderer, on the-occasion of coroner's inquest ' sat on his borso, a short distance from the assembly, laughing in derision., He,had previously defied the olficers of the law of that county, aud on one occasion thre .teued to blow out the brains of the Sheriff if he would dare assure him that a warrant was extant for his arrest. He is also said to be one of the notorious Qhuntrell’a band. The evidence, as far as I have learnod, is very conclusive against, and there exists no doubt but that he will meet bis jnst deserts. It was with much difficulty that the criminal obtained a lawyer to defend him before ibe commission. At length, however, be secured the services of Mr. Fauutleroy. a lawyer of that county, but not until n bonus bad been paid. My stay in Belton was rendered very pleasant indeed in the camp of company A, .17th,U. S... Infantiyy stationed at that^gost, and commanded by Captain Geo.'A;'Lii'eaS- ter, assisted by Lieutenant Troxel. These officers exerted themselves hugely in provid*' ing for my comfort, especially Lieutenant Troxel, who introduced me very ceremoniously tola keg oflager beer. (I Bhall not forgot that keg soon.) In my judgment, and I thiuk “we ore some judge” of such things, having-soldiered some little time, I think Captain Lancaster is entitled to the admiration of the service. His camp and everything abont it assures the visitor thereto that strict discipline is rigidly enforced ; and I om inclined to believe that Company A, 17th, is one of the most orderly companies in tho army. Reoip-rocative favors are also justly due to Lieutenants Borden and Lazenby, of the 9th Cavalry, for the courtesies shown mo on the road from Belton to Austin. These officers were both of the military commission before mentioned. The former was Judge Advocate.Suspension bridges seem to bo a great rage in tho interior of Texas. We noticed one in course of erection across the Solado, at the town of that name. My attention was also arrested on many occasions along the road by the style of improvements in building, viz : with material of certain durability, white rock, and some are very stylish, indeed, among which I noticed qnite a number in Salado and Georgetown. My stay in Georgetown was but for a lew hours ; but while there I was informed that Mr. Richard Talbot had been nominated the delegate to the Constitutional Convention for th counties of Williamson and Bnrnet, vice Joseph Talbot, resigned.Since my arrival in Austin I have been almost entirely cpnfined to shelter from the furious, wet, and disagreeably cold norther, which I hope will shortly subside, and enable me to perambulate in the interest of tho Bulletin.On to-morrow there are to bo two very important opinions of the court now in session here, delivered—one by Judge A. Morrill, the other by Jndge A. J. Hamilton. I wilt endeavor to obtain them as delivered, and duly report them. The subject is the question of the date of the effect of the emancipation bill. This will undoubtedly be interesting to the entire bar of Texas. L.