Fig. 4.—A small stream as an animal environment, with the preponderance of rapidly flowing water. Tumwater Cañon, Near Wenatchee Washington. Photo. by W. B. McCallum.
Fig. 5.—A small river as an animal environment. The rapid water conditions of a stream in an early stage of topographic development, such as is shown in Fig. 4, is here replaced by long pools of relatively quietly flowing water, connected by narrow stretches of more rapidly flowing water. Wabash River, Bluffton Indiana. Photo. by N. Miller and E. B. Williamson.
Brandt, K.
1899. Ueber den Stoffwechsel im Meere. Wissen. Meeruntersuchungen, heraus. v. d. Komm. zur wissen. Unters. deutschen Meere in Kiel. N. F. Abth. Kiel, Bd. IV, pp. 213-230.
1901. Life in the Ocean. Smithsonian Report for 1900, pp. 493-506.
A translation of the preceding paper on the transformation of substance or “cycle of matter” in the sea. The extensive footnotes are omitted.
1902. Ueber den Stoffwechsel im Meere. 2 Abhand. Wiss. Meeresunt. heraus. v. d. Komm. zur wissen. Unters. deutschen Meere in Kiel, N. F. Bd. VI, Abth. Kiel, pp. 23-79.
1905. On the Production and Conditions of Production in the Sea. Rapports et Procés-Verbaux, Inter. Council for the Exploration of the Sea, Vol. III, Appendix D. Copenhagen.