3. Winds do not, and can not, "_encounter_." They stratify upon each other. They are produced by the action of opposite electricity, and are _connected together_ in their origin and action. The atmosphere is never free from the regular and irregular currents, however invisible for the want of condensation. Aeronauts find them in the most serene days. They exist without encounter or tendency to rotation, every where, and at all times; even over the head of the distinguished Professor, whether he sleeps or is awake. We can all see them when there is condensation, and it is rarely the case that there is not some degree of it in some of them. 4. That "Great region of expansion" is a chimera. It does not exist. It is a region of _lower temperature_, and of _condensation_, instead of _expansion_ of _aqueous vapor_. The trade does not rise in it, or the S. W. wind overflow from it. See the table cited page 165. 5. The hurricanes do not originate _in the surface trades_, as he supposes. They originate in the belt of rains, the supposed "region of expansion," and issue out of it; or in the counter-trade, where volcanic elevations rise far into or above the surface trade. 6. This hypothesis can not be sustained upon his own principles. The distance between Africa and the West India Islands, where most of the hurricanes originate, is from 2,500 to 3,000 miles. These gales are small when they commence, not ordinarily over one or two hundred miles in diameter, and often less. There are trades all the way over from Africa, and S. W. winds also, if they exist, as he supposes, in the West Indies. How can it happen that this lateral overflow should pass _without effect_, over 2,500 miles of S. W. wind and trade, and concentrating the overflow of a continent over one small and chosen spot of the West Indies, _pitch down_ there, and there only, and crowd the S. W. wind into the trade below? This is too much for sensible men to believe.