We learn from South Sandwich that the Indians, constituting the Marshpee tribe, intend to petition at the sitting of the next Legislature, for a redress of grievances, and a revision of the code of laws by which they are governed. The recent revolt among them, and the measures adopted to make known their situation and treatment, by themselves, and by those who have avowed their friendship toward them, (its validity time will determine,) gave rise to considerable excitement. An inquiry into the state of affairs was instituted, which terminated, as far as we have been able to learn, to the satisfaction of those employed in the investigation, that some of the evils under which they are labouring are real, and rendered so by the laws of the Commonwealth, but many imaginary. We do not doubt that the state of society among them is low and degraded, comparatively speaking, but what contributes to keep them in this situation we are unable to say, unless it be, that the plantation has been a resort of the vagrant, the indolent, and those whom refined society would not allow among them. If this is the case, and we believe it has been, something should be done, either among the Indians, or by the Legislature, to remedy the evil. We have understood also, that certain individuals, located contiguous to the plantation, retail ardent spirits to them in quantities as large as they are able to pay for. If this be the fact, such men should be ferreted out, and in justice to the Indians, to the community about them, and to the laws of the land, they should be made to suffer, by being exhibited to public derision, and by the penalty of the act prohibiting the retail of spirits. If they have not the power, and no one feels willing to go forward in shutting up these poisonous springs, give them the power, and if they do not exercise it, let them suffer. Mr. Apes is among them, and attended the "Four Days Meeting," held during the present month, which we are told was managed with good order and regularity. The writer here says that the Indians are vile and degraded; and admits that they can be improved. He gives no explanation of the causes of their degradation. If the reader will take the trouble to examine the laws regarding the Marshpees, he will see those causes of the inevitable and melancholy effect, and, I am sure, will come to the conclusion that any people living under them must necessarily be degraded. The Journal, however, does us the small justice to admit, that we are not so degraded but that we can hold a meeting of four days duration, with propriety and moderation. What, then, might we not do, were proper pains taken to educate us. The next two extracts are from the Boston Advocate of September 10 and 11, 1833. THE MARSHPEE INDIANS.