1 Table of Contents: “...A. Ecology: the Basic Concept -- B. Autecology -- I. Theory of Autecology -- II. The Range...”

2 Table of Contents: “...I. Introduction: Delimitation of the Arctic -- II. Ecological Factors in the Arctic -- 1...”

3 Subjects: “...Ecology...”

4 Subjects: “...Ecology...”

5 Subjects: “...Ecology...”

6 Subjects: “...Ecology ...”

7 Subjects: “...Ecology ...”

8 Subjects: “...Ecology ...”

9 Subjects: “...Ecology...”

10 Subjects: “...Ecology...”