1364. Time changes in the atmosphere which constitute the most important meteorological phenomena may be classed under live distinct heads: the alterations that occur in the weight of the atmosphere; those that take place in its temperature; the changes produced in its quantity by evaporation and rain; the excessive agitation to which it is frequently subject; and the phenomena arising from electric and other causes, which at particular times occasion or attend the precipitations and agitations alluded to. All the above phenomena prove to demonstration that constant changes take place, the consequences of new combinations and decompositions rapidly following each other.
