magnifying glass vs phial

magnifying glass

noun
  • An instrument made of convex glass, used to magnify. 

phial

noun
  • A glass vessel or bottle, especially a small bottle for medicines. 

verb
  • To put or keep in, or as in, a phial. 

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