It is doubtless used by industries in thirty states or more, but comparatively few factories report it. In Texas it is listed in the box and crate industry. In Louisiana it rises to more importance, for that is the region where the tree attains its best. Slack coopers make kegs, tubs, and barrels of it; vehicle manufacturers convert it into parts of buggy tops and the running gears of wagons; it serves for furniture and interior finish; and it takes the place of ash for hoe handles and parts of agricultural implements. The uses are nearly the same in Mississippi, but it is used there for rustic seats and other outdoor furniture. In Missouri it is found suitable for cart axles, saddle trees, stitching horse jaws, and wagon beds. In Arkansas it goes with ash into flooring, and interior finish for houses. Illinois builders work it into fixtures for stores. In Michigan it serves the same purposes as in Texas, baskets, boxes, and crates. These examples doubtless are representative of its uses wherever the tree is found in commercial quantities. The wood is not durable in contact with the soil. It is also liable to attack by boring insects if logs are allowed to retain their bark. The hackberry has been planted to a small extent as a street tree in the southern towns, but it is not as popular as the elms and oaks. It will never occupy a more important position in the country’s lumber industry than it holds at present. It is a tree which, for some reason, inspires little enthusiasm in anybody; but nature takes care of it fairly well, and the small sweet drupes which it bears are a guarantee that the species will not want for seed carriers as long as birds continue to have access to its branches in winter. SUGARBERRY (_Celtis mississippiensis_) is frequently mistaken for hackberry even by persons who ought to be able to distinguish them. Botanists formerly confused the two, and probably some insist still that sugarberry is only a variety of hackberry. The leaves generally have smooth margins, and that would differentiate the tree from the hackberry were it not that sometimes the sugarberry has serrate leaves. The drupes are bright orange red and are usually smaller than the purple fruit of hackberry. As for the wood of the two species, it is not easy to tell one from the other. The sugarberry’s range is not one-third as extensive as hackberry’s, but covers some hundreds of thousands of square miles in the southeastern quarter of the United States. Its northern limit is in Illinois and Indiana where it occupies rich bottom lands and the banks of streams. It reaches its largest size in the lower Ohio river basin, grows southward into Florida and west into Texas, Arkansas, and Missouri. It crosses the Rio Grande into Mexico, appearing to outstrip the hackberry in that direction. It outstrips it in another direction also, for it is found in the Bermuda islands. The French of Louisiana called it bois inconnu, or the unknown wood.