Statistics, Exhibiting the History, Climate and Production of the State of Wisconsin.

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That Wisconsin has a climate highly conducive to general healtji is shown by these figures, the number of deaths thus reported beingl only one in one hundred and eight ; while the proportion of deaths to the total population throughout the whole United States was at the same time one in every eighty.
GEOLOGY.
^   There are three principal geological districts in Wisconsin,  eacli' characterized by  the difierent  qualities of the rocks beneath the surface.
Ist. The Primary or Azoic, occupying the central and northern portions of the state, from the vicinity of Lake Superior to the lower rapids on the Chippewa, Black, Wisconsin, Wolf and Me¬ nomonee rivers The rocks consist of granite, gneiss, talcose slate, syenite, metaraorphie sandstone, conglomerate, trap-dykes, &c. Extensive beds of iron ore, and mines of copper occur in this dis¬ trict ; and here are found the most extensive and valuable pineries, affording an almost inexhaustible supply of lumber. It is the most elevated, best watered, and the least settled and improved portion of the state. It has not been fully or carefully explored, and may hereafter be found to contain many useful and valuable minerals. Kaolin, the material used in the manufacture of the finest pottery, is found at Grand llapids on the Wisconsin river.
2d. The Sandstone district —Besting upon the southern margin of the Azoic rooks, sandstone of the earliest geological formation is found forming a belt or zone from ten to sixty miles broad ; the' greatest breadth being near the middle of the state, in Adams and- Juneau counties. In this district there are some very singular fea¬ tures, especially prominent isolated rocks and bluffs, and the "dells'" or places whore the larger rivers have formed passages for them¬ selves through narrow gorges in the rock. Very often the sand-j stone is alternated with layers of limestone, which by decay and mingling with the sand renders the soil rich and productive. Iron' ore in considerable beds is found associated with the sandstone at Ironton in Sauk county. The stone is usually too soft and easily crumbled to be made available for building purposes. It affords pure sand that might be converted into glass.
%d. The Limestone District.—If we draw a line on the accompan¬ ying map from the northwest corner of Dane county, in a north¬ easterly direction to the Menomonee river, 15 or 20 miles from Greem Bay ; and another line from the same point in a north-westerly direction to the St. Croix river near Hudson, they will represent very nearly the boundary between the sandstone district on the north, ' and the third geological division, or limestone district, on the south;