This document discusses the challenges of cataloguing reports from scientific expeditions, using the Challenger Reports as an example. It notes that there were 83 Challenger Reports published by 47 authors, held across 4 sites in 50 different sectional libraries, with 220 bib records created for this work. It also mentions the opportunity for the Natural History Museum to think about metadata across the entire museum collection as part of an effort to move specimens to a new location.