- British Library, The: BL Add. 46442 f. 93
- British Library, The: BL Add. 46442 f. 92
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Light, atmospheric particles and the causes of the blue colour of sea water and sky.
Light, atmospheric particles and the causes of the blue colour of sea water and sky; 2 ff., back of f. 2 annotated in ARW's hand "see Tyndall in Nature vol. 1. ... colours of water and air".
Light, atmospheric particles and the causes of the blue colour of sea water and sky, Tyndall's article in Nature, polarized light; 3 ff.
Light, atmospheric particles and the causes of the blue colour of the sky; 2 ff.
Prof. Dewar's experiments, light, atmospheric particles and the causes of the blue colour of the sky.
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The word limit of a contribution by ARW to the series "Are the dead alive?" for the magazine Delineator.
Congratulating ARW on his 90th birthday.
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90th birthday congratulations.
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