--In their situations, answered my uncle _Toby_: --For when a ravelin, brother, stands before the curtin, it is a ravelin; and when a ravelin stands before a bastion, then the ravelin is not a ravelin; --it is a half-moon; --a half-moon likewise is a half-moon, and no more, so long as it stands before its bastion; ----but was it to change place, and get before the curtin, --'twould be no longer a half-moon; a half-moon, in that case, is not a half-moon; --'tis no more than a ravelin. 
'In their situations,' answered my uncle. 'For when a ravelin, brother, stands before the curtin, it is a ravelin; and when it stands before a bastion, then it is not a ravelin; - it is a half-moon; a half-moon likewise is a half-moon so long as it stands before its bastion; - but was it to get before the curtin, 'twould be no more than a ravelin.'
