20656. McDougall, I.   Differentiation of the Tasmanian Dolerites: Red Hill Dolerite-Granophyre Association.   Geological Society of America, 1962, Bulletin, 73 : 279-316, 16 figures and 6 plates.   Printed wraps, minor signs of use and age discoloration, very good condition.    $12.00

20381. McDougall, I.   Differentiation of the Great Lake Dolerite Sheet, Tasmania.   Geological Society of Australia, 1964, Journal, 11 (1) : 107-132, 10 figures, 7 tables, 1 plate.   Printed wraps, minor previous owner mark on front wrap, minor signs of use and age discoloration, very good condition.    $5.00

75295. Solomon, M.   Ore Deposits of Western Tasmania.   International Geological Congress, 1976, 25th International Geological Congress, Excursion Guide, 31AC.   Softbound, previous owners stamp, minor signs of use, very good condition.    $16.00