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Durand, Loyal, Jr. (ed.) / Transactions of the Wisconsin Academy of Sciences, Arts and Letters
volume XXXI (1938)

James, Harry Raymond; Birge, Edward A.
A laboratory study of the absorption of light by lake waters,   pp. [1]-154 PDF (46.6 MB)


Page 27

James & Birge—Lake Waters and Light 
 6500 A 7000 7500 8000 
27 
 Fio. 4. Principal percentile absorption curves, 6500-8000 A. The heavy line
(J) shows the results of the present report. Aschkinass' curve (As) is plotted
so far as it does not run too close to that of James. Note their wide divergence,
7000-8500 A. The work of Collins (C) and Baldock (B) at 25° and 26°
is treated as a single curve, interrupted at 7000-7030 
A. The curve of Ganz (G) is that for 12°; it shows absorptions close
to those of Collins, 7400-8000 A, but much lower, 6950-7400 A. 


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