Animals of the high Andes
1966
Colt of destiny
1953
Young Inca prince
1965
Sidi,
1956
The citadel of a hundred stairways,
1941
The strange voyagers
1966
The story of Louis Pasteur;
1952
The story of Good Queen Bess; (Signature books)
1953
The sea and its rivers
1956
The beloved island;
1967
Blue Water Boundary
1960
Exploring the sky and sea
1961
The Amazon
1970
