Download or read book The Whales, Dolphins and Porpoises of the Eastern North Pacific written by Stephen Leatherwood and published by . This book was released on 1972 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field guide is designed to assist the layman in identifying the whales, dolphins, and porpoises he sees in the eastern North Pacific, including all the area north of the equator and east of 180 degrees W longitude. The animals described are grouped not by scientific relationships but by simularities in appearance in the field. Photographs of the animals in their natural environment are the main aids to identification. (Author).