78 CARBOHYDRATES AND ENZYMES [CH. v 



18. Davis, W. A. The Estimation of Carbohydrates. V. The supposed 

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19. Haynes, D. The Gelatinisation of Pectin in Solutions of the Alkalies and 

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20. Kastle, J. H., and Clark, M. B. On the Occurrence of Invertase in 

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21. Neville, A. Linseed Mucilage. J. Agric. Sci. t 1913, Vol. 5, pp. 113-128. 



22. Parkin, J. Contributions to our Knowledge of the Formation, Storage 

 and Depletion of Carbohydrates in Monocotyledons. Phil. Trans. R. Soc., B Vol. 191, 

 1899, pp. 35-79. 



23. Parkin, J. On a Reserve Carbohydrate which produces Mannose, from 

 the Bulb of Lilium. Proc. Camb. Phil. Soc., 1900-1902, Vol. 11, pp. 139-142. 



24. Parkin, J. The Carbohydrates of the Foliage Leaf of the Snowdrop 

 (Galanthus nivalis], and their Bearing on the First Sugar-of Photosynthesis. Biochem. 

 J., 1911, Vol. 6, pp. 1-47. 



25* Robertson, R. A., Irvine, J. C., and Dobson, M. E. A Polarimetric 

 Study of the Sucroclastic Enzymes in Beta vulgaris. Biochem. J., 1909, Vol. 4, 

 pp. 258-273. 



26. Salkowski, B. Ueber die Darstellung des Xylans. Zs. physiol. Chem., 

 1901-2, Vol. 34, pp. 162-180. 



27. Salkowski, B. Ueber das Verhalten des Arabans zu Fehling'scher 

 Losung. Zs. physiol. Chem., 1902, Vol. 35, pp. 240-245. 



28. Schryver, S. B., and Haynes, D. The Pectic Substances of Plants. 

 Biochem. J., 1916, Vol. 10, pp. 539-547. 



29. Schulze, E., Steiger, E., und Maxwell, W. Zur Chemie der Pflanzen- 

 zellmembranen. I. Abhandlung. Zs. physiol. Chem., 1890, Vol. 14, pp. 227-273. 



