1876 and All That: the ‘Special Loan Collection of Scientific Apparatus’ as a case study in crowd-sourced international public science

Some historians of the ‘Special Loan Collection of Scientific Apparatus’ exhibited in 1876 interpret its principal significance as catalysing the eventual transformation of science collections in the (South) Kensington Museum into London’s present-day Science Museum. Debates about that nexus have not, however, noted that this exhibition was an international crowd-sourced venture in public science. Far from being collection-founding donations, most artefacts displayed were discretionary loans contributed by private citizens, learned societies, instrument makers, universities, engineering companies and state departments from across both the UK and Europe, with most displayed items later returned to their exhibitors. Our paper draws upon the art historiography literature of ‘loan exhibitions’ to consider the 1876 exhibit in (mostly) physical science as part of a growing democratic tradition of resource sharing. This exhibitor-focused approach is illustrated via case studies of two kinds of contributors that did not predominantly have their loans converted to donations: (male) instrument makers and women, especially widows. In that context, we can interpret apparatus lending in 1876 as forms of advertising, memorialising, and just occasionally offloading disused but historically important equipment. It is in such terms that we can better understand why only a small fraction of loaned 1876 apparatus become permanent parts of the South Kensington science collections via such means as state departments discarding obsolete technical equipment.