The diseases and pests of the rubber tree . INDIA-RUBBER LABORATORY PRACTICE. By W, A. Caspari, , Illustrated. Crown 6d. net. • . • LONDON: MACMILLAN AND CO., Ltd,. FOMES LIONOSUSUpper surface Specimen half dry THE DISEASES AND PESTS OF THE- RUBBER TREE BY T. FETCH, , BOTANIST AND MYCOLOGIST TO THE GOVERNMENT OF CEYLON MACMILLAN AND CO., LIMITEDST. MARTINS STREET, LONDON 1921 COPYRIGHT (^ l^y^y PEEFACE In 1911 the diseases wHcli were known to attack the rubbertree were described in The Physiology and Diseases of Heveahrasilimsis. The number of recorded diseases was
The diseases and pests of the rubber tree . INDIA-RUBBER LABORATORY PRACTICE. By W, A. Caspari, , Illustrated. Crown 6d. net. • . • LONDON: MACMILLAN AND CO., Ltd,. FOMES LIONOSUSUpper surface Specimen half dry THE DISEASES AND PESTS OF THE- RUBBER TREE BY T. FETCH, , BOTANIST AND MYCOLOGIST TO THE GOVERNMENT OF CEYLON MACMILLAN AND CO., LIMITEDST. MARTINS STREET, LONDON 1921 COPYRIGHT (^ l^y^y PEEFACE In 1911 the diseases wHcli were known to attack the rubbertree were described in The Physiology and Diseases of Heveahrasilimsis. The number of recorded diseases was thencomparatively small, and it was possible to include withthem a general account of the structure and physiology ofthe tree, and a summary of those tapping experiments whichpromised to afford a foundation for a theory of rubbertapping. That book has now been out of priiit for sometime, and several inquirers have suggested the issue of asecond edition. But the number of known diseases ofHevea has, unfortunately, been considerably extended duriiigthe last eight years, while the work of numerous investigatorsin this field has added largely to our knowledge of both oldand new o
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