Four photographs will be made of tlie corona. One, with an exposure of two seconds, will be taken as totality.begins; two with exposures of 30 seconds each, will be taken while the sun remains blacked out; and the last, with an exposure of two seconds, will be taaen just before the sun emerges. It sounds comparatively simple, but each is far from the case. When this vital part of the work is being carried on the eclipsed sun will be. rather higher than half-way up in the sky. a This coronal photography is not the only work that the New Zealand party will be doing, but it lias interest from the fact that it must all be done within the short space df totality and especially because the instruments which are the ones which were used on the historic occasion at Sobral in 1919, when Einstein’s famous “.star-shaft” was first put to the test.
A few drops of “Nazol” on your handkerchief every morning will protect you from colds all day. Take this .scientific precaution right throughout the winter. Economical double size contains 120 (loses for 2s Od.-Advt.
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Hokitika Guardian, 30 August 1930, Page 6
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188Page 6 Advertisements Column 2 Hokitika Guardian, 30 August 1930, Page 6
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