Manual of Instructions for the Survey of the Public Lands of the United States, 1947

adjustment alinement altitude observation areas azimuth base bearing trees body of water brass cap mkd Bureau of Land capstan chain unit claim correction dependent resurvey diagram diam direction dist distance east boundary elongation engineer Ephemeris error established exterior green ash horizontal angle hour angle instrument intersection iron post lake Land Management latitude latitudinal local mean lode longitude magnetic declination marked meander corner meander line ment method miles mineral monument mound of stone normal township obsn original corner original survey plat Polaris position principal meridian public lands quarter-section corners record reference regular retracement secant method section corners section lines segregation Set an iron shown sighting point slope soil solar telescope solar transit solar unit special instructions stadia standard parallel star station subdivision tangent motion timber tion township tract Transcribed field notes true line vernier vertical angle watch