TY - JOUR T1 - Observations on the Mode of Growth of Discoid and Turbinated Shells JF - Proceedings of the Royal Society of London (1854-1905) VL - 18 SP - 529 EP - 532 PY - 1869/01/01/ UR - http://dx.doi.org/10.1098/rspl.1869.0089 M3 - doi:10.1098/rspl.1869.0089 AU - Macalister, A. ER -