AT a meeting of the Royal Meteorological Society on February 16, the subject for discussion was large-scale vertical atmospheric motion ... square or more), and examples of results obtained ...

IN a letter published in NATURE of February 20, p. 264, Messrs. Uhlenbeck and Goudsmit have shown how great difficulties which atomic theory had met in the attempt to explain spectral structure ...

A flock of birds hundreds strong wheeling in perfect synchrony overhead is one of nature's great sights ... with its swift motion and sudden course changes) that is not predictable from knowing ...

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