Date of Award

8-1939

Degree Type

Bachelors Essay

Degree Name

Bachelor of Science (BS)

Department

Biological Sciences

First Advisor

W.J. Keegan

Second Advisor

William N. Steil

Abstract

When botanists of the seventeenth century began their anatomical investigations of plants, their attention was quite naturally centered on the parts of the plant which they most readily observed growing above the ground. The Englishman, Robert Hooke (1661), revolutionized the botanical sciences when he announced his discovery of the fact that plant tissues are composed of cavities which he called cells. Many workers enthusiastically took up the study of plant tissues and the individual cells of which these tissues are composed. Progress was rather slow, and it was not until approximately two hundred years later that the cell theory was announced by Schleiden and Schwann. A new stimulus to research was the result, but attention was now centered on problems relating to the structure and development of plant organs. These workers studied the stem, the leaf, the fruit and flower, while the root remained untouched for another period.

Comments

A Thesis Submitted to the Faculty of Marquette University in Partial Fulfillment of the Requirements for the Degree of Bachelor of Science, Milwaukee, Wisconsin.

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