TY - JOUR T1 - Observations upon the Callus of the Hands and Feet, by the Same Curious Gentleman. Translated by John Chamberlayne, Esq JF - Philosophical Transactions (1683-1775) VL - 32 SP - 156 EP - 161 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1722.0028 M3 - doi:10.1098/rstl.1722.0028 AU - Leeuwenhoek, M. AU - Chamberlayne, J. ER -