Books author - "Sydney T. Klein"

vements be followed even at short distances without having material contact, by means of the air, with the object; sight indeed appears to have to do with Space- and sound with Time-perception. In examining Nature by means of our senses we find we are so hemmed in by what we have always taken for granted and so bound down by modes of reasoning derived from what we have seen, heard, or felt in our daily life, that we are sadly hampered in our search after the truth. It is difficult to sweep the