Overview :This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it.This w... Read More
Overview :In this groundbreaking work, J.W. Dawson describes several new species of fossil sponges discovered in Quebec. His meticulous descriptions a... Read More
Overview :This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it.This w... Read More