Final answer:
Lewis Henry Morgan wrote the book 'Systems of Consanguinity and Affinity of the Human Family', which explores familial relationships and kinship systems in different societies around the world.
Step-by-step explanation:
Lewis Henry Morgan is known for his book Systems of Consanguinity and Affinity of the Human Family, published in 1871. This book is an important contribution to the field of anthropology and explores the familial relationships and kinship systems in different societies around the world.
Morgan's work is considered foundational in the study of kinship and social organization, and it laid the groundwork for subsequent research in anthropology. His book provides insights into the ways in which societies structure their family units and define relationships based on blood ties or marriage.