. Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean . e seen. It rises in denser and more symmetrical cones than any other conifer wehave met with. The altitude of the largest is more than a hundred feet; the base of the coneformed, the branches resting on the ground not more than twenty. The branches are so thickas to prevent all access to the trunk without a vigorous use of the hatchet; and during thepouring rain of the last four day3, we have always been able to find a dry spot beneath t
. Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean . e seen. It rises in denser and more symmetrical cones than any other conifer wehave met with. The altitude of the largest is more than a hundred feet; the base of the coneformed, the branches resting on the ground not more than twenty. The branches are so thickas to prevent all access to the trunk without a vigorous use of the hatchet; and during thepouring rain of the last four day3, we have always been able to find a dry spot beneath theshelter of its impervious foliage. From these descriptions it will be seen that the silver firforms a dense and slender spire of dark-green foliage, which, on the older trees, is rather tooformal to be pleasing, unless grouped with other species, with which its form and the color ofthe foliage may contrast agreeably. In the Cascade mountains I often saw it so combined withP. grandis and Abies Williamsonii, producing groups which seemed to me to present the extremelimit of arborescent beauty. Abies Williamsonii, Neicb. (Plate VII.) Williamsons
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