promptuary vs travelogue

promptuary

noun
  • A device described in Napier's treatise Rabdologiæ, consisting of a large set of strips used to multiply multi-digit numbers more easily than Napier’s bones. 

travelogue

noun
  • A description of someone's travels, given in the form of narrative, public lecture, slide show or motion picture. 

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