Joan Barker Knihy

Ocean examines every facet of a remarkable environment, from plate tectonics to the effects of the moon, phytoplankton to blue whales. It traces Man's efforts to probe the deep in the aid of scientific discovery; it also covers his less worthy activities regarding the environment, the ramifications of which remain uncertain.

Identities more than 180 popular North American wild flowers, detailing flower and leaf type, height, flowering period, habitat, and distribution.