Many people from the south and west traveled long distances to attend the New York meeting. The connection between agriculture and various scientific programs is growing. This is due to broadening interests and deeper investigations in agricultural sciences. Agricultural problems are now attracting attention from non-agricultural institutions. Many scientists, such as biologists, botanists, and ecologists, presented papers relevant to agricultural research. The volume is large and attractive, containing many contributions and discussions. The author has been studying phyto-ecology for nearly 25 years in the western United States. This area is ideal for such research. The book is not a general treatise on plant ecology but a detailed analysis of plant succession. It includes a historical summary of plant succession, a long chapter on the causes of succession, and a study of stabilization and climax communities. The book discusses the structure and units of vegetation, summarizing views from various ecologists. The author proposes a classification system for vegetation based on developmental stages. He suggests terms for different vegetation units, such as associations, climax communities, consociations, societies, and clans. These terms aim to clarify the dynamic and static phases of vegetation. The book also includes a discussion on past climates and vegetation, based on geological records. It explores how past vegetation developed, using the same principles as present-day succession. The author references studies on weather cycles, climatic factors, and volcanic dust. The book is a valuable resource for understanding plant succession, with a comprehensive bibliography. The book is an essential reference for students of plant ecology and vegetation cycles worldwide. It presents a detailed summary of current knowledge on plant succession and offers a new classification system. The author's work is a significant contribution to the field of plant ecology.Many people from the south and west traveled long distances to attend the New York meeting. The connection between agriculture and various scientific programs is growing. This is due to broadening interests and deeper investigations in agricultural sciences. Agricultural problems are now attracting attention from non-agricultural institutions. Many scientists, such as biologists, botanists, and ecologists, presented papers relevant to agricultural research. The volume is large and attractive, containing many contributions and discussions. The author has been studying phyto-ecology for nearly 25 years in the western United States. This area is ideal for such research. The book is not a general treatise on plant ecology but a detailed analysis of plant succession. It includes a historical summary of plant succession, a long chapter on the causes of succession, and a study of stabilization and climax communities. The book discusses the structure and units of vegetation, summarizing views from various ecologists. The author proposes a classification system for vegetation based on developmental stages. He suggests terms for different vegetation units, such as associations, climax communities, consociations, societies, and clans. These terms aim to clarify the dynamic and static phases of vegetation. The book also includes a discussion on past climates and vegetation, based on geological records. It explores how past vegetation developed, using the same principles as present-day succession. The author references studies on weather cycles, climatic factors, and volcanic dust. The book is a valuable resource for understanding plant succession, with a comprehensive bibliography. The book is an essential reference for students of plant ecology and vegetation cycles worldwide. It presents a detailed summary of current knowledge on plant succession and offers a new classification system. The author's work is a significant contribution to the field of plant ecology.