Text for use with the extension course at the Coast Artillery School.

Contains index.

Introduction --Indication and identification of naval tagets -- Position finding systems -- Relocation -- Firing data -- Timing of the position finding system -- Observing instruments -- Plotting boards and accessories -- Range computing devices -- Deflection computing devices -- Spotting systems and devices -- Pointing methods and instruments -- Signal communication -- Organization and duties of the range section and battery commander's detail -- Functioning of position finding systems -- Glossary of terms -- Appendix 1 The construction of charts and scales -- Appendix 2 Tables.