...descending into the valleys ; as it passes along it must be perpetually varying the degree of heat ace rding to the elevation of the country it traverses : for,...mountains, it becomes expanded, having so much of the pressure of the superincumbent atmosphere taken away ; and when thus expanded, it attracts or absorbs...

...along its surface, climbing up the sides of mountains, and descending into the valleys, as it passes along, it must be perpetually varying the degree of...mountains it becomes expanded, having so much of the pressure of the superincumbent atmosphere taken away ; and when thus expanded, it attracts or absorbs...

...along its surface, climbing up the sides of mountains, and descending into the valleys, as it passes along, it must be perpetually varying the degree of...mountains it becomes expanded, having so much of the pressure of the superincumbent atmosphere taken away ; and when thus expanded, it attracts or absorbs...

...; as it passes along, it must be perpetually varying the degree of beat according to the elevations of the country it traverses : for in rising to the summits of mountains, it becomes expanded, VOL. III. Parti. t Atmosphere. having so much of the pressure of the superincumbent atmosphere taken...

...mountains, and descending into the vallies; as it passes along, it must be perpetually varying its degree of heat, according to the elevation of the country it traverses . . . When large districts of air from the lower parts of the atmosphere are raised two or three miles...