ADVANCED

Apgar, _Trees of the United States_, Chaps. II, V, VI.

American Book Company.

Coulter, Barnes, and Cowles, _A Textbook of Botany_, Part I

and Vol. II. American Book Company.

Goebel, _Organography of Plants_, Part V. Clarendon Press.

Strasburger, Noll, Schenck, and Karston, _A Textbook of

Botany_. The Macmillan Company.

Ward, _Timber and Some of its Diseases_. The Macmillan

Company.

Yearbook, U. S. Department of Agriculture, Division of

Forestry, Buls. 7, 10, 13, 16, 17, 18, 20, 26, 27.

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