The Society for the History of Astronomy (SHA) held their Spring Conference at the IoA on Saturday 9th April.  The IoA Library mounted a display of items to illustrate some of the talks being given on the day.  Items included a book by English instrument maker Jesse Ramsden of 1779 and an article on the nebulae by Sir William Herschel darting from 1784.  There was also a tour of the Library and historical telescopes.