ASH TREE.—The _Fraxinus americana_, L., _F. quadrangularis_, Michx., _F. sambucifolia_, Lam.—From North America, are trees of 30 to 35 metres in height by 0·60 to 1 metre in diameter. The timber is highly prized for coach-building and other special work. It appears suitable for mixed woods in 5th, 6th and 7th regions, where it may be grown like the common ash tree. BLACK WALNUT TREE, _Juglans nigra_, L.—From North America, where it attains 40 metres in height by 1 metre in diameter. Though its wood is not so valuable as common walnut, it is very pretty and fine-grained. It might be planted and grown in the same regions as the other kinds of walnut. JUNIPER TREE, _Juniperus virginiana_, L.—From 25 to 30 metres high by 1 metre in diameter, growing in North American forests. The wood is very nice, and used by cabinet-makers, etc. This conifer appears suitable for dense woods in the 3rd, 5th and 6th regions, with Lambertiana and other cypresses, and is grown in the same way. LARCH TREE.—The European _Larix europea_, L., and the American _L. microcarpa_ are hardy species of 25 to 40 metres in height by 1 metre in diameter, with deciduous leaves, which makes its transport easy; 5th, 6th and 8th regions; in tall woods with other conifers. Grown like the Spruce. SPRUCES.—Great conifers of the cold regions of North America. The most suitable species for woods, besides the _P. excelsa_, Linck., which we already grow, are the _P. alba_, Linck., from Canada, _P. Engelmanii_, Car., from the Rocky Mountains, _P. morinda_, Linck., from the Himalayas, and _P. nigra_, Linck., from Northern America. The latter species is suitable for the 6th and 9th regions; the others for the 5th and 6th, grown as firs. LIBOCEDRUS DECURRENS, Torr.—From California, where it grows to 40 metres in height, over a metre in diameter, is very strong and gives excellent timber. Appears suitable for afforestation together with the Chilian variety in the 3rd, 4th, 5th and 7th regions. To be sown and cultivated like the Lambertiana cypress. TULIP TREE, or WHITEWOOD, _Liriodendrum tulipifera_, L.—From North America, where it attains a height of 60 metres by 3 and 4 metres in diameter. Gives good wood and appears suitable for growing in tall woods on deep and humid soil in regions 4, 5, 6 and 7. To be sown thickly in furrows or in beds for transplanting when a year old. PINE TREES.—We already have different kinds of pine trees which flourish in woods. It would be well to introduce the better species, because we lack such as _Pinus australis_, Michx., from Carolina and Florida, where it grows to 35 to 40 metres in height. This is the species which gives the timber known as pitchpine.