literature. The beginning of this investigation offers a detailed introduction outlining the author's motivation and methods. Beneke reflects on the significant influence of sea air and baths on human health, recognizing the need for thorough scientific examination rather than reliance on common lore. He describes his own personal experiments during a five-week stay on the North Sea island of Wangeroge, recording specific data on his body weight, food and fluid intake, and urine analysis. The author emphasizes the importance of systematic observation and precise measurement in understanding the true effects of sea bathing on bodily functions, as he sets the stage for his findings and recommendations. (This is an automatically generated summary.)