Hunter, J. De Graaff The earth's axes and triagulation / by J. De Graaff Hunter - Dehradun : Irigonmetrical Sumer, 1918 - viii, 219 p. ; 26 cm. - Survey of India professional paper no. 16 . Subjects--Topical Terms: GeodesyCurves on surfacesRiemannian manifolds Dewey Class. No.: 526.33