The book "Synthesis of Indian Geographical Names, Illustrated by Examples of Algonquian Languages" is written by the author J. Hammond Trumbull and is a very important source for the study of the language and culture of the aboriginal people of North America. In this book, the author examines the construction of geographical names of Indian tribes and, using the examples of the language of the Algonquian people, reveals the methods and algorithms for the formation of such names. The text helps to understand important aspects of the connection of language with the landscape and the identification of places by their names in the societies of Indian tribes. The book is a valuable resource for philologists, ethnographers and anyone interested in the study of the history of the language and territories of the peoples of North America.