Published in Transactions of the South African Philosophical Society, in 1904, in volume 15, issue 1, pages 1-28

Published in Transactions of the South African Philosophical Society, in 1904, in volume 15, issue 1, pages 35-41

Published in Transactions of the South African Philosophical Society, in 1904, in volume 15, issue 1, pages 43-59

Published in Transactions of the South African Philosophical Society, in 1904, in volume 15, issue 1, pages 89-96

Published in Transactions of the South African Philosophical Society, in 1904, in volume 15, issue 1, pages 97-102

Published in Transactions of the South African Philosophical Society, in 1904, in volume 15, issue 1, pages 175-182

Published in Transactions of the South African Philosophical Society, in 1904, in volume 15, issue 1, pages 183-194

Published in Transactions of the South African Philosophical Society, in 1904, in volume 15, issue 1, pages 259-282

Published in Transactions of the South African Philosophical Society, in 1904, in volume 15, issue 1, pages 283-284

Published in Transactions of the South African Philosophical Society, in 1904, in volume 15, issue 1, pages 285-440

Published in Transactions of the South African Philosophical Society, in 1904, in volume 15, issue 1, pages 441-447

Published in Transactions of the South African Philosophical Society, in 1904, in volume 15, issue 1, pages 448-462

Published in Transactions of the South African Philosophical Society, in 1904, in volume 15, issue 1, pages 463-467