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I949 450-5 m,u.)since it yielded a singleband on mixed chromatography with cryptoxanthin obtained from yellow maize (Sadana, 1946). Zone II. This was an orange-coloured band. The pigment was identified as neo- ,-carotene U (maxima in light petroleum 480 and 450 mp.; Sadana, 1949). Zone III. This was reddish orange in colour. The pigment was extracted and identified as $-carotene by its absorption spectrum (maxima in light petroleum 482 and 452 mp) Zone IV. This was a brownish yellow band. The pigment was extracted and identified as neo-,B-carotene B (maxima in petroleum 470 and 443 m,u.). It yielded a single band on mixed chromatography with neo-,B-carotene B prepared by HCI treatment of ,-carotene (Sadana, 1949). Results of analyses of six varieties of loquats varying in colour from pale yellow to deep orange are shown in Table 1. SUMMARY Pigments separated chromatographically andidentifled from different varieties of loquats include, besides 'xanthophylls other than cryptoxanthin', cryptoxanthin, a-carotene, neo-p-carotene U and neo-,B-carotene B. Among the pigments present, cryptoxanthin and fl-carotene are the principal ones forming 15-7-33*8 and 36-5-59-6 % of the total pigments. SEPARATION OF SUGARS ON PAPER CHROMATOGRAM applied to the paper with a micropipette (3-7 p1.) so that the size ofthe spots could be standardized. The whole apparatus was kept in a constant-temperature room at 20±0 0250, as it was found that changes in temperature altered the R. values for the sugars in an irregular manner, especially ifthe critical temperature of the mixture of solvent and water was close to that of the room.

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