510 UADIATION BIOLOGY 



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(1941) Significance of the night period for development of short-day and 



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Resiihr, B. (1939) Beitrage zur Lichtkeimung von Amaranthus caudatus L. and 

 Phacelia tanacetifolia Benth. Planta, 30: 471-506. 



Ringoen, A. R. (1942) Effects of continuous green and red light illumination on 

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Ross, H. (1942) tjber die Verschiedenheiten des dissimilatorischen Stoffweehsels in 

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Rowan, W. (1926) On photoperiodism, reproductive periodicity, and the annual 

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(1938) Light and seasonal reproduction in animals. Biol. Revs., 13: 



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(1946) Experiments in bird migration. Trans. Roy. Soc. Canada, 40: 



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Saniygin, G. A. (1946) Photoperiodism in plants. Akad. Nauk. S.S.S.R. Inst. 

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Sartoris, G. B. (1939) The behavior of sugar cane in relation to length of day. 

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Schaffner, J. H. (1931) The fluctuation curve of sex reversal in staminate hemp 

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Scott, H. M., and L. F. Payne (1937) Light in relation to the experimental modi- 

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ShuU, A. F. (1927) Duration of light and the wings of aphids. Anat. Record, 37: 

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(1929) The effect of intensity and duration of light and of duration of dark- 

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Simms, B. T. (1950) Report of the Chief of the Bureau of Animal Industry, Agri- 

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Sircar, S. M. (1938) Vernalization and photoperiodism in the tropics. Lotsya, 1: 

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Sivori, E., and F. W. Went (1944) Photoperiodicity of Baeria chrysostoma. Botan. 

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Snyder, W. E. (1940) Effect of light and temperature on floral initiation in cocklebur 

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Spoehr, H. A. (1942) The culture of albino maize. Plant Physiol., 17: 397-410. 



Strain, H. H. (1949) Function and properties of the chloroplast pigments. In 

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Struckmeyer, B. E. (1950) Biology of flowering in plants. Sci. Montlily, 70: 

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Svedberg, T., and T. Katsurai (1929) The molecular weights of phycocyan and of 

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Tennyson, A. (1842) Locksley hall. Lines 17-20. 



