@unpublished{gueymard:insu-01021402, TITLE = {{Recherches analytiques du platine dans les Alpes .- Quatri{\'e}me m{\'e}moire}}, AUTHOR = {Gueymard, Emile}, URL = {https://insu.hal.science/insu-01021402}, NOTE = {working paper or preprint}, YEAR = {1853}, MONTH = Jan, KEYWORDS = {platine ; Alpes fran{\c c}aises}, PDF = {https://insu.hal.science/insu-01021402/file/Gueymard-1853-Memoire4.pdf}, HAL_ID = {insu-01021402}, HAL_VERSION = {v1}, }