2/10 Topo Notes 3 Harris, C.H. Surg. Jourm. LXXIV, 1929, pp. 305-322; Clampin, [illegible] E (book). As regards the Archbold expedition, Several flights by over the mountains forming the source of the Fly River and its upper tributaries gave a splendid opportunity to gain a broad grasp of the general geography of the area before going into the rougher country on foot. In fact it was the regrettable loss of the plane alone It capsizes at anchor in Pat morely lagoon prevented us from securing seda for our failure to become much [illegible] more extensive geographical data. The map published by Macgregor, who had with him Mr J.B. Cameron a qualified surveyor, has been used as a base on which to place newly observed data. To that map Austin and Harris made successfully additions and alterations to the while preserving the general course of the Fly (and higher up of the Palmer) River as far as the "607-mile" mark on the