00913nam0 2200241 450 00001271820080611124709.020080611d1918----km-y0itay50------baengGBa-------001yyAltitude tablescomputed for intervals of four minutes between the parallels of latitude 0° and 30° and parallels of declination 0° and 24°designed for the determination of the position-line at all hour angels without logarithmic computationby Frederick Ball3rd ed.LondonJ. D. Potter1918xl, 245 p.ill.27 cmAltitude or position line tables, 0° to 30° N. or S.52719Bal,lFrederick631450ITUNIPARTHENOPE20080611RICAUNIMARC000012718527/1024067NAVA1Altitude tables1202938UNIPARTHENOPE