This section reviews A. H. Green's third and enlarged edition of "Geology," published in 1882. The reviewer notes that while the book has been reprinted in a more attractive format, the lithological sections have been significantly expanded and rewritten, with 150 pages dedicated to crystallography and mineral descriptions. The arrangement of rocks has been changed, placing non-crystalline rocks first, which may be advantageous for teaching but is less common in petrographical works. The chapter on "confusely crystalline rocks" is criticized for its title and content, while the chapter on metamorphic rocks is praised for its thorough revision. The section on the formation of the Earth's crust is highly regarded for its practical insights. The book also covers the fluidity of the Earth's interior, the causes of geological changes, and the origin of climate variations, all presented with impartiality. Overall, the reviewer commends the book for maintaining and extending Green's reputation as an expert in geology. This review discusses the fifteenth part of the new edition of "A History of British Birds" by William Yarrell, revised by Alfred Newton and continued by Howard Saunders. The reviewer notes that while Newton's contributions are highly competent, the change in authorship may not be well-received by subscribers. Newton's work is praised for its thoroughness, but the long delay in completing the second half of the book is acknowledged. Saunders, with his expertise in Southern European bird life and modern ornithological literature, is expected to complete the final two volumes within two years. The review also mentions a section on pigeons, noting a minor error regarding the number of eggs laid by true pigeons.This section reviews A. H. Green's third and enlarged edition of "Geology," published in 1882. The reviewer notes that while the book has been reprinted in a more attractive format, the lithological sections have been significantly expanded and rewritten, with 150 pages dedicated to crystallography and mineral descriptions. The arrangement of rocks has been changed, placing non-crystalline rocks first, which may be advantageous for teaching but is less common in petrographical works. The chapter on "confusely crystalline rocks" is criticized for its title and content, while the chapter on metamorphic rocks is praised for its thorough revision. The section on the formation of the Earth's crust is highly regarded for its practical insights. The book also covers the fluidity of the Earth's interior, the causes of geological changes, and the origin of climate variations, all presented with impartiality. Overall, the reviewer commends the book for maintaining and extending Green's reputation as an expert in geology. This review discusses the fifteenth part of the new edition of "A History of British Birds" by William Yarrell, revised by Alfred Newton and continued by Howard Saunders. The reviewer notes that while Newton's contributions are highly competent, the change in authorship may not be well-received by subscribers. Newton's work is praised for its thoroughness, but the long delay in completing the second half of the book is acknowledged. Saunders, with his expertise in Southern European bird life and modern ornithological literature, is expected to complete the final two volumes within two years. The review also mentions a section on pigeons, noting a minor error regarding the number of eggs laid by true pigeons.