The passage reviews several books and a scientific theory. The first review discusses a theory on probable handedness in school children, which shows interesting results but requires more evidence. The second review highlights the fifth edition of Ettore Molinari's treatise on inorganic chemistry, noting its popularity among Italian chemists and its comprehensive coverage of recent developments. The third review is of Charles W. Bailey's book "The Professor on the Golf Links," which uses light-hearted conversations to link golf with mental and physical science. The fourth review is of Major H. C. Maydon's travelogue "Simen, its Heights and Abysses," detailing his journey through Abyssinia and the wildlife he encountered. The fifth review is of T. E. Wallis's "Practical Pharmacognosy," a valuable guide for students and teachers in laboratory work. The final review is of Richard Kearton and Howard Bentham's "The Pocket Book of British Birds," a concise guide to British bird species.The passage reviews several books and a scientific theory. The first review discusses a theory on probable handedness in school children, which shows interesting results but requires more evidence. The second review highlights the fifth edition of Ettore Molinari's treatise on inorganic chemistry, noting its popularity among Italian chemists and its comprehensive coverage of recent developments. The third review is of Charles W. Bailey's book "The Professor on the Golf Links," which uses light-hearted conversations to link golf with mental and physical science. The fourth review is of Major H. C. Maydon's travelogue "Simen, its Heights and Abysses," detailing his journey through Abyssinia and the wildlife he encountered. The fifth review is of T. E. Wallis's "Practical Pharmacognosy," a valuable guide for students and teachers in laboratory work. The final review is of Richard Kearton and Howard Bentham's "The Pocket Book of British Birds," a concise guide to British bird species.