by and by vs deadland

by and by

noun
  • Heaven; the hereafter. Usually preceded with "the sweet." 

adv
  • After a short time. 

  • After an indefinite period. 

deadland

noun
  • The afterlife, especially in belief systems that do not include reward or punishment such as heaven and hell. 

  • Wasteland; a desert or other place that does not support life. 

  • A place of death; a deadly land. 

How often have the words by and by and deadland occurred in a corpus of books? (source: Google Ngram Viewer )