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?
Laboratory Suggestions