According to its online newsletter of Thursday, 30 June: from Monday, 4 July [i.e. fully operative from Monday, 11 July 2016], NLS has announced that its Map Library is now open 3 days per week (Monday, Tuesday & Thursday) only –
http://www.nls.uk/using-the-library/opening-hours
Other Reading Rooms (e.g. Special Collections) at its Main Library (George IV Bridge) are also affected. In time, this amendment will be added to the online BCS MCG’s ‘Toolbox’ . . .
Francis Herbert (an NLS ‘Customer’)