We have sedulously guarded against suffering our Monthly Record to assume the character of a chronicle of crime. But we can not omit noticing the enormous increase of crime, especially of offenses committed with violence, during the last few months. The extraordinary number of immigrants who have landed in our country for some months past begins to produce the effect upon our criminal statistics which was to be apprehended. It will be observed that a very large proportion of those arrested for crimes are of foreign origin. The number of commitments to the New York City prison during the month of July was 1782, of whom 361 were of native, and 1421 of foreign birth. The statistics of the Alms House present a similar proportion of foreigners. The crops, taking the whole country together, are represented as unusually abundant the present season. There are, however, some important exceptions. In Maryland, Virginia, and throughout a large part of the South, the maize has suffered severely from drought, and a very scanty return is anticipated. The tobacco crop in the same States, is said to be very deficient. It is also anticipated that taking the whole cotton crop together, it will fall short of the usual quantity, though in many localities the reports are favorable. In Louisiana, the sugar plantations suffered greatly from the overflow of the Mississippi in the early part of the season, which is reported to have affected one-third of the sugar-estates; since this, the cane has been injured by the drought. With these important exceptions, the harvest is reported to be abundant, almost beyond precedent. This is especially the case in New York, and the wheat-growing portions of the West. From almost the entire extent of our frontier territories we have accounts of Indian hostilities. In Texas the valley of the Rio Grande is terribly annoyed by their depredations. The Seminoles, transplanted to the Mexican frontier some years since, have shown a disposition hostile to the Mexicans, and as we are bound by treaty to repress their ravages, no little annoyance is anticipated in connection with them. In New Mexico the Camanches, Navajoes, and Pueblos have committed numerous acts of hostility, and the protection of the whites will demand the utmost exertions on the part of the new military commandant. Parties of emigrants proceeding overland to Oregon have been stopped by the wandering tribes, and contributions demanded for the privilege of passing through their country. In Oregon hostilities have broken out with fresh violence. The latest arrivals bring accounts of a number of hostile engagements, attacks, and massacres. In California difficulties are by no means at an end. Large numbers of the Indians refuse to enter into peaceful arrangements, and continue their depredations.