The author and artist are indebted to a great many scientists and other careful observers who have lived among the Eskimos. The whole record of our sources is too long to give, but here are some we have found particularly helpful: various writings of Dr. Franz Boas, Vilhjalmur Stefansson, Rockwell Kent; also the Federal Writers Project, A Guide to Alaska, and books by Edward Moffat Weyer, Jr., Clarence L. Andrews, Aage Gilberg, Knut Rasmussen, Fridtjof Nansen and Peter Freuchen. Many articles in the National Geographic Magazine have been consulted, as have publications of the United States Natural History Museum. In addition to valuable pictorial material in most of the foregoing, we have received assistance in preparing illustrations from the Fish and Wild Life Service of the United States Department of the Interior.

Without help from all these sources and others, too, this book would not have been possible. Very special thanks go to Dr. Ruth Bunzel, anthropologist with the Bureau of Applied Social Research of Columbia University, for her advice regarding the manuscript.