. A systematic treatise, historical, etiological and practical, on the principal diseases of the interior valley of North America : as they appear in the Caucasian, African, Indian, and Esquimaux varieties of its population. Jan. Feb. Mar. April. May. June. July. Aug. Sepi . Oct. Nov. Dec. 0 o o o o o ^ o o 7 o 518 THE PRINCIPAL DISEASES OF THE [book I. CLEVELAND. Jan. ) POSIXION. N. ° 31 W. L. 1 Elevation. 81° 46 1 640 Mean Annual Temperature. 61°02 Extreme Libration. Lowest. —15^ Highest. ~93°~ Range. T08°^ Se
. A systematic treatise, historical, etiological and practical, on the principal diseases of the interior valley of North America : as they appear in the Caucasian, African, Indian, and Esquimaux varieties of its population. Jan. Feb. Mar. April. May. June. July. Aug. Sepi . Oct. Nov. Dec. 0 o o o o o ^ o o 7 o 518 THE PRINCIPAL DISEASES OF THE [book I. CLEVELAND. Jan. ) POSIXION. N. ° 31 W. L. 1 Elevation. 81° 46 1 640 Mean Annual Temperature. 61°02 Extreme Libration. Lowest. —15^ Highest. ~93°~ Range. T08°^ Seasons. Winter. Spring. Summer. Autumn. 31°.94 49°. 60 70°.82 54°.61 Months. Feb. Mar. April. May. June. July. Aug. Sept. Oct. Nov. Dec. PEMBINA. 1 Position. 1 N. L. W. L. Elevation. 98° 00 800 49° 00 Mean Annual Temperature. 38°.60 Extreme Libration. Lowest. Range. 136° HiGHES T. —42° 94° Seasons. Winter. Spri NO. .06 Summer. Autumn. 11°.30 38° 64°.22 39°.59 IVlONTHS. Jan. Feb. Mar. April. May. June. July. Aug. Sept. Oct. Nov. { Dec. o 0 o 0 o o 1 o o o 1 O PART n.] INTERIOR VALLEY OF NORTH AMERICA. 519 SECTION VIII. TEMPERATURES OF ST. LOUIS AND CINCINNATI, WITH DIAGRAMS. I. St. Louis. — George Engelmann, M. D., a higlily scientific, natural-ized German, of St. Louis, has favored me with the unpublished results of along series of meteorological observations, made at that place, and illustra-ted with diagrams. The character of the observer, and the central positionof St. Louis, in reference to seas, lakes, mountains, and prospective, if notpresent population, give to these observations a value, which has deter-mined me to print them. Those which relate to temperature, will form aproper conclusion to the present chapter. The notes which follow the tables,and also the diagram, are from Doctor Engelmann; but the latter
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