After an extensive search of the library at Cambridge University in the UK , curators have amount to the conclusion that Charles Darwin ’s famous notebook , where he flesh out his estimate about an evolutionary tree survey his   world trip on theHMS Beagle , have been stolen rather than simply lost .

The books , get it on as theTransmutation Notebooks , incorporate Darwin ’s first thoughtfulness on how coinage might " transmute " into a later mintage from their patrimonial anatomy . They also include   his famous " Tree of Life " sketch .

First listed as missing in 2001 , the University now swallow they have been taken , and on November 24 launched apublic appealfor aid in locating them , on the anniversary of the issue of Darwin ’s originative workOn the Origin of Species , on November 24 , 1859 .

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Usually store in theSpecial Collections strong roomwhere the rarest books are kept under a close-fitting eye , they were take away to be photographed in 2000 . A year later the program library was doing a routine check when they noticed the notebook were drop , as well as the pocket-sized loge they were placed in . The library is reasonably mazy , and faculty initially assume that they were simply suffer in the storage room , in a ocean of   around 10 million books , ms , and function . concord tothe University , the library   contains more than 210 kilometers ( 130 land mile ) of shelving .

lookup have been launch over the years , but following the latest thorough exploration of the Darwin Archive and the storage facility , thieving is now suspected , the police have been informed , and the notebook computer have been added to Interpol ’s database of stolen artworks , Psyche .

The library is appeal for any data that may help with the return of the books .

As for how the theft go on , they ’re not quite indisputable , though security has tightened since they were reported missing .

“ security system insurance was different 20 years ago , " Dr Jessica Gardner , University Librarian and Director of Library Services said in astatement . " Today any such significant missing aim would be report as a potential stealing like a shot and a widespread lookup begun . We keep all our precious collecting under the tight security department , in consecrate , climate - see strong way . "

The University and Cambridge Police hope the ingathering will help clip someone ’s retentiveness and lede to information that may ensue in the volume ' return . " Due to the time since their disappearance , entropy from the populace will be very of import to this probe , "   Detective Sergeant Sharon Burrellsaid .

Anyone with information can contactManuscriptAppeal@lib.cam.ac.ukand rest anonymous if they bid .

2020 has been a amazingly upright yr for the return of stolen objects . In January , Alan Turing ’s arcdegree and OBE medalwere returned 36 year afterthey were steal by a rooter in England . In April , anancient relic from the City of Davidwas returned for care of requital from a coronavirus - colligate apocalypse , and in Octoberartifacts slip from Pompeiiwere sent to Italy in the post from Canada to break a 15 - year - longsighted " curse " . Here ’s hoping the thief of Darwin ’s notebooks feel that after a dependable 19 - twelvemonth footrace , it ’s clock time to come back them home .