PRACTICAL PROBLEMS IN BOTANY PRACTICAL PROBLEMS IN BOTANY BY WILFRED W. BOBBINS, Professor of Botany in the College of Agriculture of the University of California AND JEROME ISENBARGER Lecturer, Natural Science Loyola University , Chicago Sixth Printing NEW YORK JOHN WILEY SONS, INC. LONDON CHAPMAN HALL, LIMITED PREFACE It is the belief of the authors of this book that no subject con tributes more, when properly taught, to the attainment of the cardinal principles of secondary education than does biological science. It is the main province of this text to lay a foundation of fundamental principles which will enable pupils to develop an understanding of the significance of plant life which is such an important part of their environment. Moreover, the work in botany should be made practical in the sense that it should supply a basis of fact necessary to an understanding of principles, so that the student can use them in developing within himself a degree of social, civic, ethical, and...

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