00883cam a22002651 4500 gs 48000385 DLC 20260227111354.0 810425s1948 sa f000 0 eng c gs 48000385 (OCoLC)7367082 U.S. Geol. Survey. Library ViBlbV ViBlbV DLC premarc QE325 .A53 no. 18 551.12 Krige, Leo Jacobus, 1884- Borehole temperatures in the Transvaal and Orange Free State II. Pretoria, Govt. Printer, 1948. 24 p. 24 cm. South Africa. Geological Survey. Geological series. Bulletin no. 18 English and Afrikaans. Earth temperature. Borings South Africa. Geological series. Bulletin (South Africa. Geological Survey Division) ; no. 18. 28315 28315