We now take for granted that we can use our cell phones to speak to anyone, anywhere, at any time. We take for granted that we can travel to other continents in a matter of hours. We take for granted ...
Herbert Spencer, by D.G. Thompson.--Charles Robert Darwin, by J.W. Chadwick.--Solar and planetary evolution, by G.P. Serviss.--Evolution of vegetal life, by W. Potts ...
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