As a result of their isolation, the proportion of endemic plants is greater here than in any other region, and the great elevation of the mountains, with the consequent variation in temperature, moisture and barometric pressure, has multiplied the number of species.
The regular tides are hardly perceptible, but, under the influence of barometric pressure and wind, the sea-level occasionally varies as much as ft.
The average barometric pressure over England is about 2 9.94 in., and normally diminishes from south-west to north-east at all seasons, the mean pressure on the south coast being 29.97 and that on the northern border 29.88.
Or early climatologists who made their own daily observations of precipitation and barometric pressure, interpreting as well as collecting readings.
This watch also measures altitude and barometric pressure and is water resistant to 330 feet.