This is a wonderful book for studying ANY aspect of nature (except ocean life.) Thoroughly discusses all details of any living thing that you could dream of...want to know where a cricket's ears are located? How to tell if you have a male/female? What should you feed your cricket? Ever wondered why a lightning bug "lights up"? How can you tell if you have a male or female? Covers birds, fish, reptiles, wild animals, farm animals, pets, trees, flowers, rocks, weather, stars, etc, ETC!!! Many labled diagrams. A GREAT book, and written to fit in wonderfully with a Charlotte Mason philosophy. Geared towards elementary grades and complete with lessons, questions, projects, etc. Over 800 pages of easily understood information. As the original was published in 1911, be aware that the photos are not in color, nor as clear as modern nature guides, but the book MORE than makes up for this in so many ways! HIGHLY RECOMMENDED!