<f203r.P.10;W> the secular cooling that must someday overtake our planet -
<f203r.P.11;W> has already gone far indeed with our neighbour its physical -
<f203r.P.12;W> condition is still largely a mystery but we know now that -
<f203r.P.13;W> even in its equatorial region the midday temperature barely -
<f203r.P.14;W> approaches that of our coldest winter its air is much more -
<f203r.P.15;W> attenuated than ours its oceans have shrunk until they cover -
<f203r.P.16;W> but a third of its surface and as its slow seasons change huge -
<f203r.P.17;W> snowcaps gather and melt about either pole and periodically -
<f203r.P.18;W> inundate its temperate zones that last stage of exhaustion -
<f203r.P.19;W> which to us is still incredibly remote has become a present -
<f203r.P.20;W> day problem for the inhabitants of mars the immediate -
<f203r.P.21;W> pressure of necessity has brightened their intellects enlarged -
<f203r.P.22;W> their powers and hardened their hearts and looking across -
<f203r.P.23;W> space with instruments and intelligences such as we have -
<f203r.P.24;W> scarcely dreamed of they see at its nearest distance only -
<f203r.P.25;W> of miles sunward of them a morning star of hope -
<f203r.P.26;W> our own warmer planet green with vegetation and grey with -
<f203r.P.27;W> water with a cloudy atmosphere eloquent of fertility with -
<f203r.P.28;W> glimpses through its drifting cloud wisps of broad stretches -
<f203r.P.29;W> of populous country and narrow navycrowded seas =