Volume 9 Number 11

Research Papers

• THE BIOLOGICAL CONTROL OF CANE-GRUBS

  E. Jarvis

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• THE CACAO INDUSTRY OF TRINIDAD. SOME ECONOMIC ASPECTS. Part V. Section III

  C. Y. Shephard

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• STUDIES IN TROPICAL LAND TENURE

  H. M. Leake

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• OBSERVATIONS CONCERNING THE HEALTHINESS OF COFFEE TREES IN COSTA RICA

  Oskar F. Kaden

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• MANURING BANANAS

  R. C. Wood

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