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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 work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely... Read Full 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 work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely... Read Full 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 work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely... Read Full Overview

This foundational work of zoology offers an encyclopedic look at the animal kingdom, spanning from invertebrates to mammals. Written by one of the most respected zoologists of the late 19th century, the text remains a classic of the field to this day, providing a valuable... Read Full Overview

This foundational work of zoology offers an encyclopedic look at the animal kingdom, spanning from invertebrates to mammals. Written by one of the most respected zoologists of the late 19th century, the text remains a classic of the field to this day, providing a valuable... Read Full 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 work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely... Read Full Overview