The chapter discusses the new features of Volume 2A, particularly the emphasis on flame photometry and fluorimetry. The improvements in burners and photomultiplier tubes have significantly enhanced the sensitivity of these techniques. However, the lack of a dedicated chapter on the principles of these methods may make it challenging for readers to understand the rationale behind different burner choices. The text also highlights the importance of considering elements and internal standards, noting that uniform light emission with varying temperatures is crucial for accurate results. Fluorimetry is suggested as an alternative to flame photometry for determining lithium, with its high sensitivity making it suitable for detecting low concentrations in the presence of sodium and potassium. The chapter also mentions that Volume 2A is a valuable addition to the original four-volume treatise, with carefully selected references from a wide range of scientific journals. It is noted that the book is free from bias towards American work, unlike some U.S. publications. This review praises the textbook "A First Course in Statistical Techniques" by F. G. Moore as an excellent introduction to statistical methods. The book is described as readable and comprehensive, covering topics from data collection and representation to sampling and regression. The author's style is engaging, and the book is recommended for grammar schools, sixth form pupils, and a broader audience interested in understanding the role of observation and sampling in research and economic life. The review notes a few misprints but overall recommends the book warmly, with the only reservation being the absence of answers to the exercises. The review of "Dynamics of Behavior" by Prof. Robert S. Woodworth is positive, acknowledging the author's enduring ability to explain contemporary psychological viewpoints. The book, based on Woodworth's earlier work "Dynamic Psychology," covers a wide range of topics from reflexes to reasoning, with a focus on perception, motivation, and learning in the context of biological adaptation. While the content is eclectic and includes recent experimental material, the review suggests that the theories and facts are not always well-related and could benefit from a more cohesive approach. The reviewer notes that Woodworth's ability to present modern psychological perspectives remains strong, but the book may not fully reflect his own evolving views.The chapter discusses the new features of Volume 2A, particularly the emphasis on flame photometry and fluorimetry. The improvements in burners and photomultiplier tubes have significantly enhanced the sensitivity of these techniques. However, the lack of a dedicated chapter on the principles of these methods may make it challenging for readers to understand the rationale behind different burner choices. The text also highlights the importance of considering elements and internal standards, noting that uniform light emission with varying temperatures is crucial for accurate results. Fluorimetry is suggested as an alternative to flame photometry for determining lithium, with its high sensitivity making it suitable for detecting low concentrations in the presence of sodium and potassium. The chapter also mentions that Volume 2A is a valuable addition to the original four-volume treatise, with carefully selected references from a wide range of scientific journals. It is noted that the book is free from bias towards American work, unlike some U.S. publications. This review praises the textbook "A First Course in Statistical Techniques" by F. G. Moore as an excellent introduction to statistical methods. The book is described as readable and comprehensive, covering topics from data collection and representation to sampling and regression. The author's style is engaging, and the book is recommended for grammar schools, sixth form pupils, and a broader audience interested in understanding the role of observation and sampling in research and economic life. The review notes a few misprints but overall recommends the book warmly, with the only reservation being the absence of answers to the exercises. The review of "Dynamics of Behavior" by Prof. Robert S. Woodworth is positive, acknowledging the author's enduring ability to explain contemporary psychological viewpoints. The book, based on Woodworth's earlier work "Dynamic Psychology," covers a wide range of topics from reflexes to reasoning, with a focus on perception, motivation, and learning in the context of biological adaptation. While the content is eclectic and includes recent experimental material, the review suggests that the theories and facts are not always well-related and could benefit from a more cohesive approach. The reviewer notes that Woodworth's ability to present modern psychological perspectives remains strong, but the book may not fully reflect his own evolving views.