Published in Bulletin of the Southern California Academy of Sciences, in 1959, in volume 58, pages 11-16

Published in Bulletin of The Southern California Academy of Sciences, in 1959, in volume 58, pages 16

Published in Bulletin of The Southern California Academy of Sciences, in 1959, in volume 58, pages 17-26

Published in Bulletin of The Southern California Academy of Sciences, in 1959, in volume 58, pages 47-50

Published in Bulletin of The Southern California Academy of Sciences, in 1959, in volume 58, pages 65-71

Published in Bulletin of The Southern California Academy of Sciences, in 1959, in volume 58, pages 107-111

Published in Bulletin of The Southern California Academy of Sciences, in 1959, in volume 58, pages 112-114

Published in Bulletin of The Southern California Academy of Sciences, in 1959, in volume 58, pages 125-132