Published in Gardens' Bulletin, Singapore, in 1956, in volume 15, pages 1-3

Published in Gardens' Bulletin, Singapore, in 1956, in volume 15, pages 4-13

Published in Gardens' Bulletin, Singapore, in 1956, in volume 15, pages 14-17

Published in Gardens' Bulletin, Singapore, in 1956, in volume 15, pages 18-21

Published in Gardens' Bulletin, Singapore, in 1956, in volume 15, pages 22-30

Published in Gardens' Bulletin, Singapore, in 1956, in volume 15, pages 31

Published in Gardens' Bulletin, Singapore, in 1956, in volume 15, pages 32-265

Published in Gardens' Bulletin, Singapore, in 1956, in volume 15, pages 266

Published in Gardens' Bulletin, Singapore, in 1956, in volume 15, pages 267-273

Published in Gardens' Bulletin, Singapore, in 1956, in volume 15, pages 274-275

Published in Gardens' Bulletin, Singapore, in 1956, in volume 15, pages 276-284

Published in Gardens' Bulletin Singapore, in 1956, in volume 15, pages 285-376

Published in Gardens' Bulletin, Singapore, in 1956, in volume 15, pages 377-379