Published in Gardens' Bulletin, Straits Settlements, in 1921, in volume 2, pages 311-403
Published in Gardens' Bulletin, Straits Settlements, in 1921, in volume 2, pages 405-418
Published in Gardens' Bulletin, Straits Settlements, in 1921, in volume 2, pages 419-421
Published in Gardens' Bulletin, Straits Settlements, in 1921, in volume 2, pages 421-423
Published in Gardens' Bulletin, Straits Settlements, in 1921, in volume 2, pages 423-426
Published in Gardens' Bulletin, Straits Settlements, in 1921, in volume 2, pages 426-429
Published in Gardens' Bulletin, Straits Settlements, in 1921, in volume 2, pages 432-435
Published in Gardens' Bulletin, Straits Settlements, in 1921, in volume 2, pages 435-438
Published in Gardens' Bulletin, Straits Settlements, in 1921, in volume 2, pages 438-441
Published in Gardens' Bulletin, Straits Settlements, in 1921, in volume 2, pages 441-444
Published in Gardens' Bulletin, Straits Settlements, in 1921, in volume 2, pages 444-445