action may cease, and a rapid return transit, and an ordinary season, may follow. Believing in the laws of periodicity in relation to the weather and disease, I planted an early kind of corn (the Dutton), in 1836, and had a crop when few around me succeeded. We must watch this return transit, with hope, indeed, but not without fear, and be wise in time. There is a mass of other evidence in these summaries which shows the truth of what I have written. There is not a deduction of Mr. Blodget which it will not explain. The ascent of the summer lines of temperature to the west is explained by the diminution of magnetic intensity. Their descent in winter by the location and attractions of the concentrated trade. The excess of precipitation in Alabama and Mississippi by the succession of summer and winter belts. That of the interior of the Atlantic slope in summer, by the showers which fall upon the elevations; and of the coast, by the easterly storms and their attraction of the surface atmosphere of the ocean, at other seasons. But I cannot further particularize. Even the influence of the spots is clearly demonstrated by the observations at _interior stations_, which were unaffected by contiguous oceans or elevations. At Forts Washita, Gibson, Scott, Smith, and others, the years 1847 and 1848 were below the mean. All that evidence, and those deductions, however, I must pass by for want of space, and take leave of the subject. Footnotes: [1] See the diagram for summer at page 55. [2] Law of Storms, p. 42. [3] Kearakakua Bay (called Cavrico above), is on the S. W. side of the island, and the trade was reversed during the day by the cloud condensation inland. [4] Lieutenant Wilkes spent twenty days upon the top of this or an adjoining mountain, and his observations there will be alluded to in another connection. [5] All attempts to produce this result by the sudden exhaustion of air about the chickens in receivers, or shooting them from cannons, have failed, and no patent for a chicken-picker has been applied for. [6] A meter is 1 yard, and .0936 of a yard. [7] See his map, accompanying the Geography of the Sea. [8] See Am. Jour. of Science, New Series, Vol. 18. p. 187. [9] Their estimate was 100 to 120 miles. [10] Since the text was in type, and, as might have been anticipated, we have intelligence confirmatory of this, from the Cape De Verde Islands. The inter-tropical belt of rains has not moved as far north as the northern islands--they have had no rain--and the people are in a starving condition. Transcriber's Notes: Passages in italics are indicated by _italics_. Punctuation has been corrected without note.