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Penguins (Sphenisciformes) are a remarkable order of flightless wing-propelled diving seabirds distributed widely across the southern hemisphere. They share a volant common ancestor with Procellariiformes close to the Cretaceous-Paleogene boundary […]
A preliminary analysis shows that magnetic variations of periods 16 to 60 minutes at South Georgia are strongly polarized in a NNE’ly direction. The effect is observed at all seasons […]
Measurements of aerial admittance as a function of height above a snow surface show that when the surface temperature is below freezing, the aerial performance is insensitive to slight surface […]
The need to investigate and understand the nature of changes in abundance of economically important marine living resources has been widely recognized. They may be naturally occurring fluctuations, cycles or […]