TraiisadioHS Socicly Xuval Arr/iilrrts and Marine J'jii^iiiccrs, To/. 20, IQ12. pi^ic c6 



To ilhistmtc pa/?cr on "Marine LioJiting Equipmcnl for the PoiKima Cniial," 



by James Pattisoii, Esq. 



SUNVALVE. 



