At the beginning of the International Geophysical Year few people were fully aware of the difficulties of conducting an Antarctic ice accumulation program. In fact, the only man of the present generation having made an extensive study of Antarctic firn (metamorphosed snow) was Valter Schytt of the Norwegian-British-Swedish Expedition, 1949-52. Quite probably he was the one man who realized just how bewildering interpretation of stratigraphy of a snow pit wall in Antarctica could be. [...]

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