Page 4 (a) N A NA T U R E. POSITION. JABAL HALVI. in WADI TAYTN, Eastern Hajar. The range of Jabal Halwi which faces Jabal Baidhah or Baiyadh across the valley is equally remarkable for the darkness of its hue and differs no less from Jabal Haidhah in its general con figuration, which is rugged and intricate.
