We have not the figures at hand, but it is probable that at least one-tenth of the area north of the Grand River is embraced in the pine region. The swamp lands granted to the State will probably cover nearly double the area of the pine lands proper. The remainder for the most part is covered with a magnificent growth of hard timber suited to the necessities of our growing population and commerce. The statistics herein furnished will give some idea of the importance and value of the lumber traffic in this States. The trade in pine timber, lumber, shingles and other varieties of lumber, with the traffic in staves form one of the most important branches of manufacture and commerce in our own State, and this trade alone is now accomplishing more for the development and settlement of the country than all other causes in operation. The lumber manufactories in Detroit and its suburbs are eleven in number. The following are the names of the proprietors and the amount cut last year by each: FT. LUMBER. PCS. LATH. H. A. & S. G. Wight 6,500,000 2,220,000 Samuel Pills 3,500,000 482,000 -- Moffat (est) 1,500,000 H. B. Benson 3,254,029 W. Warner & Co. 194,370 Brooks & Adams 3,800,000 Baughman, Hubbard & Co. 3,378,080 1,043,300 Kibbee, Fox & Co. 3,000,000 800,000 N. Reeve 800,000 20,000 Davis & David 2,000,000 Copeland 1,000,000 ---------- --------- Total 29,426,479 4,745,300 The aggregate of capital employed by these mills is $1,440,000. The above amount is no criterion of their capacity. The same mills cut 46,000,000 feet in 1856, and nearly the same in 1857, and their probable capacity is 54,000,000. Warner & Co., run their mill only about five weeks last year, and are now about retiring from business. One of the others sustained a temporary loss of business by fire. The product will in the aggregate be doubled next season. The logs sawed in Detroit are procured from St. Clair River, Black River, Mill Creek and, Belle River. As a large share of that sold here has been on contract, there has been no great fluctuation in the market at this point. On the first of July the rates by the cargo were $25a$26 for clear and $19a$20 for second clear; on the first of October, $24 for clear, and $18 for second clear. Last winter and spring were very unfavorable for lumbering. Owing to the small quantity of snow, but few logs were got out, and many of them being on small streams, owing to the failure of the usual spring freshets, were not sawed, so that upon the whole the mills of the State turned out only about half the amount of their capacity.