. Studies in natural history. Natural history; Natural history. A LIMNOLOGICAL RECONNAISSANCE TABLE 4—COMPARISON OF OKOBOJI AND GENEVA LAKES. See Fig. 1. Depth, Area at depth; Volume below depth; meters per cent per cent Okoboji Geneva Okoboji Geneva 0 5 10 15 20 25 30 35 40 nJto'f* /O 20 30 +Q SO 60 SO ™-j°a&,. 40 <4S •4S Fig. 1. Percentile hypsographic curves of lake Okoboji (O) and Geneva lake (G). These
. Studies in natural history. Natural history; Natural history. A LIMNOLOGICAL RECONNAISSANCE TABLE 4—COMPARISON OF OKOBOJI AND GENEVA LAKES. See Fig. 1. Depth, Area at depth; Volume below depth; meters per cent per cent Okoboji Geneva Okoboji Geneva 0 5 10 15 20 25 30 35 40 nJto'f* /O 20 30 +Q SO 60 SO ™-j°a&,. 40 <4S •4S Fig. 1. Percentile hypsographic curves of lake Okoboji (O) and Geneva lake (G). These curves show the area of the lake basin at any depth, as a percentage of the area of the surface. See Table 4. The difference between the lakes is striking. The area of the basin of Okoboji lake is reduced to one-half that of the surface just below 10 meters; in Geneva lake the same reduction is found below 20 meters, and this in spite of the fact that the areas of the two lakes at 5 meters are an al-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original University of Iowa; State University of Iowa; Making of America Project. Iowa City, Ia
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectnaturalhistory, booky
