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SCIENCE NOTES. surprising that numerous expeditions were organized for observing the complex phenomena involved. The weather conditions were favourable at most if not at all the observing stations, and valuable results were obtained. It may be noted that the duration of totality was less than had been calculated by several seconds, and that therefore the lunar tables appear to need correction. The heat of the corona was examined with a bolometer, and was found to be positive as compared withdoi:10.1093/library/s2-i.4.434 fatcat:mfap3sygtrfxhikgmle2n6zp6m