Popular Science Monthly, المجلد 70McClure, Phillips and Company, 1907 |
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agaves American appear arts astronomy become birth body botany called canals cause cent century century plant christians circuits College color Colorado River Columbia University death rate denatured alcohol disease ethyl alcohol experience fact give glacial erosion glaciers grade Greek hand hanging valleys heat henequen human idea important increase insects Inside Passage institutions interest Jamaica Jews language less light living magneto maguey mathematical matter means ment method mezcal mind mortality motion nature Nunatak observed organic persons phenomena philosophy physical plants possible practical present principle produced Professor Protozoa pulque pyridine Russia scientific sense social space species subscribers super-organic switchboard teacher telephone theory things thought tion to-day true truth University wire words York