Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 25-37

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 39-43

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 45-51

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 61-63

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 65-194

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 225-236

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 237-245

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 247-258

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 273-523

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 524-564

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 565-570

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 575-591

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 593-598

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 599-602

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 603-604

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 605-636

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 637-646

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 653-657

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 669-670

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 685-694

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 695-701

Created: 2016-04-30, modified: 2016-04-30

Published in Transactions of the Royal Society of South Africa, in 1915, in volume 5, issue 1, pages 713-750

Created: 2016-04-30, modified: 2016-04-30