 |
 |
 |
 |
| This expedition to study the aquatic life in certain sections of rivers that are part of the Peruvian headwaters of the Amazon was funded by the Catherwood Fdn., and the Amer. Philosophical Soc. The purpose of this expedition was to compare the pattern of aquatic life in rivers in the tropical zone with the pattern of aquatic life in rivers in the temperate zone in eastern and southern U.S. Contents: Intro., by Ruth Patrick; Limnological Observations and Discussion of Results, by Ruth Patrick; Chemical, Physical, and Bacterial Characteristics, by Yvonne H. Swabey; and Systematic Studies: Essays by John Cairns, Jr., Frederick Aldrich, Selwyn Roback, Paul Spangler, Francis Drouet, H. Skuja, L.A. Whitford, and Matthew Hohn. Illustrations. |
|
 |
 |
|
 |
|
 |

|