. Smithsonian miscellaneous collections. Fig. i.—Humid Lower Tropical Zone. An aquatic environment in the lowerChagres Valley near Bohio, Canal Fig 2—Humid Lower Tropical Zone. Typical section of forest interior nearGatun, Canal Zone, exposed by clearing of foreground. no. 5 MAMMALS OF PANAMA—GOLDMAN 27 respectively. While the total rainfall is more copious in the humidthan in the arid division, the most important difference between thetwo sections is in the comparative continuity of the supply, and itseffect on the fauna and flora. Thus, in the humid division moisturein the form of rai
. Smithsonian miscellaneous collections. Fig. i.—Humid Lower Tropical Zone. An aquatic environment in the lowerChagres Valley near Bohio, Canal Fig 2—Humid Lower Tropical Zone. Typical section of forest interior nearGatun, Canal Zone, exposed by clearing of foreground. no. 5 MAMMALS OF PANAMA—GOLDMAN 27 respectively. While the total rainfall is more copious in the humidthan in the arid division, the most important difference between thetwo sections is in the comparative continuity of the supply, and itseffect on the fauna and flora. Thus, in the humid division moisturein the form of rain or fog is received at very short intervals through-out the year, and when the nights are clear heavy dew exerts itsrefreshing influence on the vegetation, whereas in the arid divisionlong periods of drought prevail. As a result of these contrastingconditions the leaves are persistent and an evergreen forest, the rain-forest of authors, uniformly overspreads the humid division,while in the arid division the leaves are largely deciduous, the forestturns brown during the dry season, and may be interrupted by open,grassy savannas which become
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Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience
