TY - JOUR T1 - Extract of a Letter, Written by Mr. Muraltus of Zurich, to M. Haak, a Fellow of the R. Society, Concerning the Icy and Chrystallin Mountains of Helvetia, Call'd the Gletscher. English'd Out of Latin by the Publisher, as Follows JF - Philosophical Transactions (1665-1678) VL - 4 SP - 982 EP - 983 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1669.0026 M3 - doi:10.1098/rstl.1669.0026 AU - Muraltus, M. ER -