de to commit technical terms to memory.
Any term used in describing a plant or explaining its structure can
be looked up when it is wanted, and that should suffice. On the other
hand, plans of structure, types, adaptations, and modifications,
once understood, are not readily forgotten; and they give meaning and
interest to the technical terms used in explaining them."

The specific directions given for collecting plants, for preparing
herbarium specimens, and for investigating the structure of plants
make this treatise of great use to those who are obliged to study
without a teacher. The very extensive glossary makes the work of
value not only to this class of students, but to those, as well, whose
pursuits are directed in our schools. The work fills, in short, the
very place which Dr. Gray designed it should.

_G. L. Goodale._

_The Kansas Forest Trees Identified by Leaves and Fruit_, by W. A.
Kellerman, Ph.D., and Mrs. W. A. Kellerman (Manhattan, Kansas). This
octavo pamphlet of only a dozen pages contains a convenient artificial
key for the rapid determination of seventy-five species of trees.
By the use of obvious characters the authors have made the work of
identification comparatively easy in nearly every instance, and even
in the few doubtful cases, the student will not be allowed to go far
astray. The little hand-book ought to be found of use even beyond the
limits of the State for which it was designed.

_G. L. Goodale._

Public Works.

THE FALLS OF MINNEHAHA.--A tract of fifty acres, beautifully located
on the Mississippi, opposite the mouth of the Minnehaha, has been
acquired by the City of St. Paul, and land will most probably be
secured for a drive of several miles along the river. The bank here is
more than 100 feet high, often precipitous, clothed with a rich growth
of primeval forest, shrubbery and vines. It is hoped that Minneapolis
may secure the land immediately opposite, including the Falls of
Minnehaha and the valley of the stream to the great river. In this
event a great park could be made between the two cities, easily
reached from the best part of both, with the Mississippi flowing
through it and the Falls as one of its features. This, in connection
with the park so beautifully situated on Lake Como, three miles from
St. Paul, and the neat parks of Minneapolis and its superbly kept
system of lake shore drives, would soon be an object worthy of the
civic pride of these enterp