TY - JOUR T1 - Instructions Concerning the Use of Pendulum-Watches, for Finding the Longitude at Sea JF - Philosophical Transactions (1665-1678) VL - 4 SP - 937 EP - 976 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1669.0013 M3 - doi:10.1098/rstl.1669.0013 ER -