Principes de Philosophie Zoologique, by Etienne Geoffroy Saint-Hilaire, presents a detailed exploration of zoological philosophy as discussed in March 1830. This significant work delves into the fundamental principles governing the study of animal life, offering insights into the scientific thought of the early 19th century. Saint-Hilaire's text provides a valuable resource for understanding the development of zoological science and its philosophical underpinnings. It remains a key text for historians of science and anyone interested in the intellectual history of zoology.

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