Clement, _Plant Physiology and Ecology_. Henry Holt and
Company.
Coulter, Barnes, and Cowles, _A Textbook of Botany_, Part
II, and Vol. II. American Book Company.
Darwin, _Insectivorous Plants_. D. Appleton and Company.
Duggar, _Plant Physiology_. The Macmillan Company.
Goodale, _Physiological Botany_, pages 337-353 and 409-424.
American Book Company.
Green, _Vegetable Physiology_. J. and A. Churchill.
Lubbock, _Flowers, Fruits, and Leaves_, last part. The
Macmillan Company.
MacDougal, _Practical Textbook of Plant Physiology_.
Longmans, Green, and Company.
Report of the Division of Forestry, U.S. Department of
Agriculture, 1899.
Ward, _The Oak_. D. Appleton and Company.
VIII. PLANT GROWTH AND NUTRITION--THE CIRCULATION AND FINAL USES OF FOOD BY
PLANTS
_Problem.--How green plants store and use the food they make._
_(a) What are the organs of circulation?_
_(b) How and where does food circulate?_
_(c) How does the plant assimilate its food?_