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  1. 81
    by Houston, R. A
    Published 1938
    Book

    A treatise on light.
  2. 82
    by Noakes, G. R.
    Published 1937
    Book

    A text-book of light.
  3. 83
    by Sheard, Charles
    Published 1933
    Book

    Life-giving light.
  4. 84
    by Macfie, Ronald Campbell
    Published 1927
    Book

    Sunshine and health.
  5. 85
    by Reese, H. M.
    Published 1927
    Book

    Light a textbook for students who have had one year of physics.
  6. 86
    Book

    The effect of photoperiod on the flowering of Polytrias amaura (Buse) O. Ktze
  7. 87
    Book

    The influence of fertilizers, mulch and light attenuation on the yield and quality of ginger
  8. 88
    Visual Material

    Comparative study of dwarf and normal phenotypes of peach (Prunes Persica Batsch) with special reference to the effect of light on the anatomy growth habits and endogenous hormones, their translocation and metabolism
  9. 89
    Book

    Light and vision
  10. 90
    Book

    Advances in photochemistry.
  11. 91
    Thesis

    The effect of red and far-red light on the germination of seeds of four species of Philippine plants
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