Vol. 11 No. 2

Research Papers

• The efficacy of dieldrin against wool destroying insect

  P. K. Ayappa, P. S. Cheema, C. F. Paul, S. L. Perti, S. K. Ranganathan

  83-91

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• Standardization of spectrographic methods of analysis and its role in the zinc die casting alloy industry in India

  R. D. Naidu

  92-103

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• A study on the psychological effects of experimental isolation and semi starvation

  S. L. Dass, M. S. Prakash Rao

  104-111

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• A condition for achromatism of three lenses

  T. V. Pardhasaradhi

  112-115

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• Study of the effect of temperature and humidity on nylon fabrics under storage

  P. S. Nadkarni

  116-120

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• Proximate and mineral composition of some compounded soup powders

  B. S. Bhatia, K. G. Nair, Girdhari Lal

  121-125

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• A note on the studies on colonization of vanaspati with chlorophyll

  T. R. Sharma

  126-129

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