APP. P.] 



APPENDIX 



555 



Table P. — Table of Distances at which Objects can be Seen at Sea, 

 according to their respective Elevations and the Elevation of the 

 Eye of the Observer. 



Example. — A tower 150 feet high will be visible to an observer whose eye 

 is elevated 15 feut abovo the water 19 nautical miles; thus, from the Table : 

 15 feet elevation distance visible 4*44 nautical miles. 



550 •• •• 14-22 



18-66 



From Admiralt'i Tables. 



