graticule vs reticulation

graticule

noun
  • A grid of horizontal and vertical lines. 

  • A nearly square or nearly rectangular region created by a graticule. 

  • A reticle. 

  • The network of lines of latitude and longitude that make up a coordinate system such as the one used for the Earth. 

reticulation

noun
  • A network of criss-crossing lines, strands, cables or pipes. 

  • A method of copying a painting by the help of threads stretched across a frame. 

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