i , • I ( I i • ill I • ' " I f I ■' M ' ***!^ 



JOURNAL 



OF 



NATURAL PHILOSOPHY, CHEMISTRY, 



AND 



THE ARTS. 



JANUARY, 1804. 



ARTICLE I. 



befcrtption and life of, the Station Pointer ; an Injlnment.for^ 

 readilj/ c{fcertaining the Situation of the Ohferver after luiving 

 determined the angular Fofition of three known Obje^s; Con' 

 T^rw^J^ec/f&y Joseph HuDDART, Efq. R R*S, and commu-, 

 mcatcd hi/ him to the Editor, • * , 



1 HAVE long been defirous of prefentlng my readers with inftrument for 



a drawing and account of the inftrument which forms the fub-^!^'"^-^ *l^ 

 . " place from obff. 



je6l of the prefent paper. Its utility in protra6ling the fitu-of two angles 

 ation of a veflel upon a chart from an accurate obfervation by of azimuth only* 

 the fextant of the angular pofilion of three known dbje6ls on 

 fhore, inftead of the uncertain and rough method of beariiigs 

 by compafs, is great and obvious; and if any other' recommen- 

 dation could be defired, it would be that of its repeated ap- 

 plication in the hands of a man of fcience and experience.' 

 This we have the fatisfadion to pdflfefs in the public labours of 

 Mr. Huddart, whofe maritime furveys are too well known 

 and efteemed to require the fuffrage of any individual at this 

 day. The Very firft occalion, when I happened to have the 

 pleafure of converfing with him, I requefled the cortimuni- 

 cation of this inftrument, with which he with great readinefs 

 favouredme, and from which the drawing exhibited in P/ar<r I* 

 was made. ' 



Vol. VII.— January, 1804. B 1% 



