Sir Oliver Lodge 
Immortality of the Soul 

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. If a man is shut up in a house, the trans patency of the windows is an essential condi tion of his seeing the sky. But it would not be prudent to infer that, if he walked out of the house, he could not see the sky because there was no longer any glass through which he might see it.