masts in order to connect the highlands and inland districts with the coasts and the coasts with each other even beyond the ocean. In this way civiliza tion comes into hostile contact with the forests and thus under like circumstances the country in which civilization is oldest possesses the fewest woods. Hence forests are more sparingly met with in the countries of the Mediterranean than northward of the Alps and more sparingly in the center than in the north of Europe so far as the climate is not an obstacle to the growth of timber. Have not then our descendants to expect a great deficiency of tim ber—a deficiency which may readily become disas trous ? Many public economists and philanthropists have assumed this to be the case and many do still assume it ; they depict the future destitution of timber in the darkest colors they loudly complain of the felling of wood and they demand that Gov ernment should prevent in time the ruinous conse quences by limiting the free use of wooded estates. Yet even as I have striven to demonstrate the groundlessness of the idea of the danger which is feared of alteration of climate by the diminution of forests in temperate countries I hope also to be able in some measure to scatter the dark cloud which so many imagine they see hanging over future generations in regard to the products of forests. That which is true of so many other inconv eniences following in the train of civilization holds also in this ; it has its cure in a great measure in itself The Earth Plants and Man by .1. F. Schouw. The Sewer of Paris. Imagine Paris taken off like a cover ; a birds-eye view of the subterranean net-work of the sewer will represent upon either bank a sort.of hnge branch en grafted on thefiver. Upon the right bank the belt sewer will be the trunk of this branch the second ary conduits will be the limbs and the primary drains will be the twigs. This figure is only general and half exact ; the right angle which is the ordin ary angle of this
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