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Show YOUR PRIiON WALLS. Man by mechanleAlly stimulating Ms sense, is steadily shoving away the walls with which nature originally Im prisoned him. The first men on earth could see only as far as their eyes would CUT When the sun went down and dark HfM descended, or when ibey entered a cave, their power of sight was al most obliterated. To overcome this, man extended the sense of sight by inventing portable fire- first fire brands, later candles, kerosene lamps, and now the electric light The power of sight has further been extended by the Invention of specta rles, field glasses, telescopes, magnify lag glasses, camera and moving pic Uire Tonight for Instance, you go to a movie and. in a nowsreel. as good as tsoe something that may have hap pned 12.000 or more miles away. A telescope is being built, which, It I 1s claimed, will bring the moon with j in SO miles of the earth. Extending the weak hearing powers Of the human ear, we have ear trum ' -pets, megaphones, telegraph, tele ' tphone and, finally, the wireless. Stand on a corner In dead of night ; send you cannot bear a man talkin( tiro blocks awa. Yet, using a pecu. i liar arrangement of metals and chemicals chemi-cals (radiophone), you hear people thousands of miles away as clearl) as if they were in the same room with you I I Man's sense of feeling is being in-1 tensiried by the strain of civilization. especially in factories and cities The bedlam of modern life is making us more susceptible to pain, by put ting our nerves on edge. That's one I reason we are not as "brave" as the ancient Spartans Nerve strain fre ' QUently leads to Beard's disease- neurasthenia, neu-rasthenia, a highly strung condition in whu h the patie nt is conscious 01 n ally al-ly every nerve In his body In South American ports. It if said natives can tell, by sense of smell, whether it's an European, negro or Chinese that has alighted from a boat. All men once were like that Now mosi of us have lost Hie sense of smell except for violent odors like limbur ger. The sense of taste, too. Is less pow erful than of old Prospect Is lhat man, when his cl ilisatlon matures, wdll almost entirely, have lost hisenses of taste and smell, with Ho ihn e other senses developed artificially to an uncanny degree. |