na INLIS000000000008402 Ind 0010-1118008402 Earth and its mysteries TYRRELL, G.W. by G.W. Tyrrell London G. Bell and Sons 1954 278 p. : ill. ; 24 cm. 278 p. : ill. ; 24 cm. 525TYRe Index: p. 263-278 525 EARTH 199/55