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A dictionary of the plant names of the Philippine islands / by Elmer D. Merrill.
- Department of the interior. Bureau of government laboratories,
- 1903.
- Manila :
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The gutta percha and rubber of the Philippine islands : No. 7 / by Penoyer L. Sherman.
- 853
- Department of interior. Bureau of government laboratories. Chemical laboratory,
- 1903.
- Manila :