Alaska V12: Enchytaeids And Tubicolous Annelids (1904) is a scientific book written by Gustav Eisen. The book is focused on the study of two types of marine worms: Enchytaeids and Tubicolous Annelids. Eisen provides a comprehensive analysis of these worms' morphology, anatomy, and behavior, with a particular emphasis on their taxonomy and classification. The book includes detailed illustrations and photographs of the worms, as well as descriptions of their habitat and distribution in Alaska. This book is an essential resource for marine biologists, zoologists, and anyone interested in the study of marine worms.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.