Published in Philippine J. Sci., in 1919, in volume 14, pages 105-125

Created: 2012-05-04, modified: 2012-05-04

Published in Philippine Journal of Science, in 1919, in volume 14, pages 195-199

Created: 2010-11-20, modified: 2017-01-06

Published in Phil. Jour. Sci., in 1919, in volume 14, pages 239-250

Created: 2017-07-28, modified: 2017-07-28

Published in Philippine Journal of Science, in 1919, in volume 14, pages 287-294

Created: 2014-01-09, modified: 2014-01-09

Published in Philippine Journal of Science, in 1919, in volume 14, pages 527-554

Created: 2010-11-20, modified: 2017-01-06

Published in Phil. Jour. Sci., in 1919, in volume 14, issue 4, pages 365-457

Created: 2017-07-28, modified: 2017-07-28

Published in Philippine Journal of Science, in 1919, in volume 15, pages 9-13

Created: 2010-11-20, modified: 2015-02-16

Published in Philippine Journal of Science, in 1919, in volume 15, pages 139-207

Created: 2010-11-20, modified: 2023-02-16

Published in Phil. Jour. Sci., in 1919, in volume 15, pages 225-261

Created: 2017-07-28, modified: 2017-07-28

Published in Philippine Journal of Science, in 1919, in volume 15, pages 269-281

Created: 2010-11-20, modified: 2023-02-16

Published in Philippine Journal of Science, in 1919, in volume 15, pages 385-387

Created: 2016-05-18, modified: 2016-05-18

Published in Phil. Jour. Sci., in 1919, in volume 15, pages 539-544

Created: 2017-07-28, modified: 2017-07-28

Published in Philippine journal of science, in 1919, in volume 15, issue 1, pages 31-58

Created: 2015-05-09, modified: 2015-05-09

Published in Phil. Jour. Sci., in 1919, in volume 15, issue 2, pages 125-137

Created: 2017-07-27, modified: 2017-07-27