Published in Gardens' Bulletin, Straits Settlements, in 1937, in volume 9, issue 2, pages 119-138

Published in Gardens' Bulletin, Straits Settlements, in 1937, in volume 9, issue 2, pages 139-144

Published in Gardens' Bulletin, Straits Settlements, in 1937, in volume 9, issue 2, pages 145-151

Published in Gardens' Bulletin, Straits Settlements, in 1937, in volume 9, issue 2, pages 187-189

Published in Gardens' Bulletin, Straits Settlements, in 1937, in volume 9, issue 3, pages 223-284

Published in Gardens' Bulletin, Straits Settlements, in 1937, in volume 9, issue 3, pages 285-309

Published in Gardens' Bulletin, Straits Settlements, in 1937, in volume 9, issue 3, pages 310-318

Published in Gardens' Bulletin, Straits Settlements, in 1937, in volume 9, issue 2, pages 190-221

Published in Gardens' Bulletin, Straits Settlements, in 1937, in volume 9, issue 2, pages 152-181

Published in Gardens' Bulletin, Straits Settlements, in 1937, in volume 9, issue 2, pages 182-186