It is now a fact beyond all question that figures in relation to the value of any given tree for forestry purposes, are of no value whatever for a guide for forestry planting, so much of the value of timber depending on the suitability of the soil and climate to the perfect health and vigor of the tree. Hence, what we learn of forestry in Scotland or England is of no use whatever in the Atlantic portion of the United States, because the conditions are rarely favorable to the same tree alike in both localities. The Scotch pine, the Larch, and the Norway spruce make excellent timber in Scotland. They are trees which love a comparatively moist atmosphere and cool climate; they have vigorous health, and with vigorous health they have sound durable timber. These trees grow in the dryer regions of the world but are not long lived; and with this extra strain on the vital powers an inferior quality of timber follows. This is the reason why the enthusiasm for Larch on the western plains has died out. It was an enthusiasm based on Scotch experiences. What we want for successful American forestry is an adaptation of trees to climate. This can only be determined by actual experiment. In many cases native trees will be far better than any imported species.

On the other hand there are no doubt a number of exotie species that would on trial prove at least equal to indigenous kinds. There must be in many gardens by this time large specimens of many kinds of foreign trees, and whenever these have to be cut down we should be glad of notes of their growth or probable qualities.