On the Phenomena of Variation and Geographical Distribution

Focusing on the variation and geographical distribution of butterflies, this work explores the Papilionidae family in the Malayan region. The author presents detailed observations and analyses from his research, contributing to the understanding of species diversity and ecological patterns. The book serves as a significant historical reference in the study of entomology and biogeography, reflecting the scientific insights of the mid-19th century. This reprint preserves the original content and quality of the 1865 edition.