CAPTAIN WEIR'S AZIMUTH DIAGRAM
By Lieutenant E. R. McClung, U. S. Navy
Captain Weir's azimuth diagram as furnished to ships bears an explanation of only one of the several solutions of the astronomical triangle which can be performed with more facility by using this diagram than by any other method. Directions for solving problems in addition to the usual one of simply finding the azimuth where latitude, declination and hour angle are known are here printed in condensed form, with a view to removing the page, and, after cutting it in two pieces, pasting these pieces on the blank margin of the diagram. Any doubt as to the theory and method involved in these solutions will be removed by consulting the references to Muir and U. S. Naval Institute Proceedings.