After a rapid glance at Lower Canada, Professor Johnston crossed the St Lawrence, in order to complete the survey of New Brunswick, which, before leaving England, he had been commissioned to make for the Government of the colony. We have had no opportunity of seeing the official Report, in which he has published the detailed results of his observations; but the valuable information collected in these volumes has strongly confirmed our previous impression, that the resources and importance of this fine colony have never yet been sufficiently appreciated at home. With an area as nearly as possible equal to that of Scotland, it possesses a much larger surface available for agriculture. The climate is healthy and invigorating; it is traversed by numerous navigable rivers; its rocks contain considerable mineral wealth; and the fisheries on its coasts are inexhaustible. Imperfectly developed as its resources are, the trade from the two ports of St John's and St Andrew's alone, exceeds that of the whole of the three adjoining States of the Union--Maine, Vermont, and New Hampshire--although its inhabitants do not number one-sixth of the population of these States. As to the fertility of the soil, Professor Johnston, by a comparison of authentic returns, shows that the productive power of the land already cultivated in the province considerably exceeds the averages of New York, of Ohio, and of Upper Canada--countries which have hitherto been considered more favoured both in soil and climate. By classifying the soils in the several districts, he has estimated that the available land, after deducting a reserve for fuel, is capable of maintaining in abundance a population of 4,200,000; while its present number little exceeds 200,000. In all the course of his travels, he met with but a few rare instances in which the agricultural settlers did not express their contentment with their circumstances; and although it seems still questionable whether farming on a large scale, by the employment of hired labour, can be made remunerative, the universal opinion of the experienced persons he consulted testified that, with ordinary prudence and industry, the poorest settler, who confines his attention to the clearing and cultivation of land, is sure of attaining a comfortable independence.