GEOGRAPHIC NAMES OF ANTARCTICA 



by the FIDS in 1947. Not adopted: Thule Rock, 

 Thule Rocks. 



Thule Rocks: see Thule Islets. 



THULLA POINT: ice-free point lying 1 mi. NE. 

 of Jebsen Ft. on the W. coast of Signy I., South 

 Orkney Is.; in 60°43'S., 45°40'W. Roughly sur- 

 veyed in 1933 by DI personnel, and surveyed in 

 1947 by the FIDS. Named by the Br-APC in 1954 

 after the Norwegian steamship Thulla, which 

 searched for suitable anchorages for whale factory 

 ships in the South Orkney Is. in 1911-12. 



Thumb, The: see Little Thumb. 



THUMB ISLET: islet lying between Winter I. 

 and the NW. end of Galindez I., in the Argentine 

 Is., off the W. coast of Palmer Pen.; in 65°15'S., 

 64°16'W. Charted and named in 1935 by the BGLE 

 under Rymill. 



THUNDER GLACIER: a through glacier, about 

 4 mi. long, which extends in an E.-W. direction 

 across Wiencke I. between the Sierra Du Fief and 

 the Wall Range, in the Palmer Arch.; in 64°50'S., 

 63°24'W. The glacier has probably been known 

 since the discovery of Wiencke I. by the BelgAE 

 in 1898. It was charted in 1944 by the FIDS, and 

 so named by them because a survey party was 

 nearly overwhelmed there by an avalanche. 



Thurston, Mount: see Hjalmar Johansen, Mount. 



THURSTON PENINSULA: the peninsula be- 

 tween Bellingshausen Sea and Amundsen Sea, at 

 the NE. end of Marie Byrd Land, which terminated 

 in about 71°50'S., 100°50'W. Disc, in flights from 

 the Bear by members of the USAS in February 

 1940. Named by Byrd for W. Harris Thurston, of 

 New York City, textile manufacturer and designer 

 of the windproof "Byrd cloth," and contributor to 

 the expedition. Not adopted: Eights Peninsula. 



THWAITES ICE TONGUE: extensive ice tongue 

 about 30 mi. wide, which is believed to be fed by 

 a large continental glacier descending to the Wal- 

 green Coast close SE. of Mt. Murphy, extending 

 N. into Amundsen Sea for about 60 mi.; in about 

 74°15'S., 105°30'W. Delineated from aerial photo- 

 graphs taken by USN Op. Hjp. in December 1946. 

 Named by the US-ACAN for Fredrik T. Thwaites, 

 glacial geologist, geomorphologist and professor 

 emeritus at the Univ. of Wisconsin. 



TIBER ROCKS : group of about five rocks lying 

 near the head of Rymill Bay, close W. of the mouth 

 of Romulus Gl. and 2.5 mi. NW. of the highest 

 summit of Black Thumb Mtn., off the W. coast 

 of Palmer Pen.; in 68°23'S., 66°59'W. First seen 



and roughly surveyed in 1936 by the BGLE under 

 Rymill. Resurveyed in 1948-49 by the FIDS, and 

 so named by them because of the association of 

 these rocks with nearby Romulus and Remus Gla- 

 ciers. 



TICKLE CHANNEL: narrow channel in the S. 

 part of Hanusse Bay, about 0.5 mi. wide and 2 mi. 

 long, extending northward from The Gullet and 

 separating Hansen I. from the E. extremity of 

 Adelaide I.; in 67°08'S., 67°40'W. First seen from 

 the air by the BGLE on a flight in February 1936. 

 Surveyed from the ground in 1948 by the FIDS, 

 who applied this descriptive name. In Newfound- 

 land and Labrador a tickle is a narrow water 

 passage as between two islands. 



TIJUCA POINT: prominent rock point forming 

 the NW. side of the entrance to Hound Bay, on the 

 N. coast of South Georgia; in 54°20'S., 36°13'W. 

 The name Penguin Point was probably applied to 

 this feature by DI personnel who made a running 

 survey of this coast in 1930. Following the SGS, 

 1951-52, it was recommended that this name be 

 altered to avoid confusing this feature with the 

 many other "Penguin" names. The name Tijuca 

 Point was given by the Br-APC after the Tijuca, 

 a three-masted barque built at Nantes in 1866. 

 From 1908 onwards, she was used as a transport 

 vessel by the Compaiiia Argentina de Pesca, ply- 

 ing between Buenos Aires and the whaling station 

 at Grytviken. She foundered in 1946. Not 

 adopted: Penguin Point. 



Tillberg Islands: see Tillberg Nunataks. 



TILLBERG NUNATAKS: group of four promi- 

 nent nunataks, the highest about 2,800 ft. in el., 

 lying at the S. side of Drygalski GL, on the E. 

 coast of Palmer Pen.; in about 64°48'S., 60°51'W. 

 Dr. Otto Nordenskjold gave the name Tillberg 

 Islands, after Judge Knut Tillberg, contributor to 

 the SwedAE, 1901-4, to what appeared to be a 

 group of islands at the mouth of Drygalski Gla- 

 cier. These islands were determined to be 

 nunataks protruding through the ice by the FIDS 

 in 1947. Not adopted: Tillberg Islands. 



TILLETT ISLANDS: group of small islands, the 

 largest of which rises about 230 ft. above the sea, 

 lying about 5 mi. NNE. of Cape Wilkins, off Kemp 

 Coast; in about 67°11'S., 59°25'E. Disc, in Febru- 

 ary 1936 by DI personnel on the William Scoresby. 

 Not adopted : Tillet Isles, Tilletoyane [Norwegian] . 



Tilletoyane: see Tillett Islands. 



TILLEY, MOUNT: fiat-topped, ice-capped moun- 

 tain, about 6,300 ft. in el., standing 7 mi. S. of 

 Mt. Tyrrell and 3 mi. inland from George VI Sound 



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