ABSTRACT
In the last paper of this series (Pearsall and Hewitt, 1933) changes in the transparency of the water of Windermere were described. It was shown that the penetration of blue light (5100 Å to 4000 Å), as measured by the sulphuric acidiodide method, was very much greater in 1920 than it was in 1932. The present communication deals with the results of observations on changes in the transparency of the water of Windermere throughout the year March, 1932, to March, 1933. The causes of the differences in the light penetration at different times of the year are discussed.
Copyright © 1934 The Company of Biologists Ltd.
1934
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