page_title: Leonard Jaczewski
hierarchical_section_title: Leonard Jaczewski
caption_attribution_description: English: Leonard Antonovich Yachevsky (1858—1916) Русский: Леонард Антонович Ячевский (1858—1916)
context_page_description: Leonard Jaczewski, Леонард Антонович Ячевский, Leonard Yachevsky was a Polish geologist, geographer, engineer and explorer of Siberia. He was one of the pioneers in the study of permafrost.
context_section_description: Leonard Jaczewski, Леонард Антонович Ячевский, Leonard Yachevsky (1858–1916) was a Polish geologist, geographer, engineer and explorer of Siberia. He was one of the pioneers in the study of permafrost.
caption: L. Jaczewski
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