373
billet were determined in Houghou Island, From hevanaine, a uct. work of iriangles wase steude I to tamiaud and to re ace islands, included in the dow here tory. In this wav station were ottamis ed, cu silly ou th toucana adiog hunks.
The total number o stations, trus pine A, 12 14, 1
triangulation konut, that is boints that have been, obar véd from as well as to, the av offers are what is known a Mutera clad soints" at which no observations navebuv taken, so that the position is lined by the of tivo or upre lay only. In such cases, the valveter the determinations, are less than those of the trigono netrical points, bucalize the third aughé a rach triangle et not me à cured, so as to cive a e oublete check.
From soiutos so deûraumeed he tobography of the country was delive oted by wie aus of the slave Tabl. the courses of rivers ridy-tives with and the position of villages were diteracíved, and the features of the hills evere sketched are, with norizontal hachuries, resembling, contours hill-shading.
& the method