GEOGRAPHIC NAMES OF ANTARCTICA 



for Theodor Hansen, gunner on the Southern 

 Pride, Norwegian whale catcher used in the survey. 



THETA ISLETS: several small islets and rocks 

 which lie close W. of Kappa I. at the W. extremity 

 of the Melchior Is., Palmer Arch.; in 64°19'S., 

 63"01'W. The islets were roughly charted by DI 

 personnel in 1927. The name Theta, derived from 

 the eighth letter of the Greek alphabet, appears to 

 have been first used on a 1946 Argentine govt, chart 

 following surveys of the Melchior Is. by Arg. expe- 

 ditions in 1942 and 1943. Not adopted: Islas 

 Alzogaray [Spanish]. 



THIL ISLET: rocky islet about 0.4 mi. long, pro- 

 truding above the E. flank of Baker Three Gl. about 

 1.5 mi. N. of the N. end of Jennings Promontory, 

 close off the W. end of Ingrid Christensen Coast; 

 in about 70°08'S., 71°49'E. Delineated in 1952 by 

 John H. Roscoe from USN Op. Hjp. aerial photo- 

 graphs taken in March 1947, and named by him for 

 R. B. Thil, air crewman on USN Op. Hjp. photo- 

 graphic flights in this area and other coastal areas 

 between 14° and 164°, east longitude. Not adopted: 

 Thil Island. 



THIMBLE PEAK: truncated cone, about 1,500 

 ft. in el., consisting of rock and ice, standing about 

 3 mi. SW. of the head of Hope Bay and 1.5 mi. NE. 

 of Duse Bay, at the NE. end of Palmer Pen.; in 

 63°28'S., 57°06'W. First charted by the FIDS, 

 1946. The descriptive name was proposed by the 

 Br-APC in 1948. 



THOMAS, CAPE: a projection of the edge of 

 Amery Ice Shelf in the S. part of MacKenzie Bay, 

 separating Douglas Bay from Thorshavn Bay, along 

 Lars Christensen Coast; in about 68°43'S., 70°50'E. 

 The name was given by the BANZARE under Maw- 

 son, who disc, this feature during a flight over Mac- 

 Kenzie Bay on Feb. 10, 1931. 



THOMAS, POINT: point marking the S. side of 

 the entrance to Ezcurra Inlet in Admiralty Bay, on 

 King George I., in the South Shetland Is.; in 

 62°08'S., 58°29'W. Point Thomas was charted by 

 the FrAE, 1908-10, under Charcot, and named by 

 him for a member of the expedition. 



THOMAS ISLAND: largest island in High jump 

 Arch, about 5 mi. long and from 1 to 3 mi. wide, 

 lying near the center of the main cluster of islands 

 off the N. flank of the Bunger Hills, off Knox Coast; 

 in 66°07'S., 100°57'E. Delineated from aerial 

 photographs taken by USN Op. Hjp., 1946-47, and 

 named by the US-AC AN for Lt. (j.g.) Randolph G. 

 Thomas, USN hydrographic officer with USN Op. 

 Wml., 1947-48, who served as surveyor with the 

 astronomical control parties. 



Thomas Mountains: see Lowell Thomas Moun- 

 tains. 



Thomas Watson Escarpment: see Watson Es- 

 carpment. 



THOMPSON, MOUNT: mountain about 5,600 ft. 

 in el., standing NW. of Lehrke Inlet and surmount- 

 ing the central part of the base of Eielson Pen., 

 on the E. coast of Palmer Pen.; in 70°40'S., 62°20'W. 

 Disc, by the RARE, 1947-48, under Ronne, who 

 named this feature for Andrew A. Thompson, geo- 

 physicist with the expedition. 



THOMPSON GLACIER: channel glacier about 4 

 mi. wide and 8 mi. long, flowing N. from the con- 

 tinental ice overlying Banzare Coast to the S. side 

 of Paulding Bay; about 15 mi. SW. of Clark Pt.; 

 in about 66°45'S., 123°20'E. Delineated from aerial 

 photographs taken by USN Op. Hjp., 1946-47, and 

 named by the US-ACAN for Egber Thompson, 

 midshipman on the sloop of war Peacock of the 

 USEE under Wilkes, 1838-42. 



Thompson Point: see Thomson Point. 



THOMSON HEAD: steep, rocky headland, about 

 3,000 ft. in el., standing at the E. side of Bourgeois 

 Fjord, Palmer Pen., about 4 mi. E. of the SE. ex- 

 tremity of Blaiklock I.; in 67°35'S., 66°45'W. First 

 surveyed in 1936 by the BGLE under Rymill. Re- 

 surveyed in 1948-49 by the FIDS and named for 

 William H. Thomson, FIDS air pilot at Stonington 

 I. in 1947. 



THOMSON POINT: point on the E. side of Pirie 

 Pen., about 1.7 mi. SE. of Cape Mabel, on the N. 

 coast of Laurie I. in the South Orkney Is.; in 

 60°42'S., 44°38'W. Charted by the ScotNAE, 

 1902-4, under Bruce, and named for J. A. (later 

 Sir Arthur) Thomson, Regius Prof, of Natural His- 

 tory, Univ. of Aberdeen, at Aberdeen, Scotland. 

 Not adopted: Thompson Point. 



Thorfin Islands: see Colbeck Archipelago. 



THORGAUT ISLANDS: large group of small 

 islands, up to 100 ft. in el., lying off Mac-Robert- 

 son Coast to the N. and NW. of Cape Daly and 

 the Robinson Group. The islands lie in an area 

 about 13 mi. long in an E.-W. direction, from about 

 63°25'E. to 63°58'E., and in about 67°27'S. Disc. 

 by the crew of the Norwegian whale catcher 

 Thorgaut in late January 1931. The positions of 

 the islands in the group were plotted by Norwegian 

 cartographers from aerial photographs taken on 

 Jan. 31, 1937 by a Nor. exp. under Christensen. 



300 



