The rules allowed delegates to demand reconsideration of any decision previously voted on. This allowed the delegates to take straw votes to measure the strength of controversial proposals and to change their minds as they worked for consensus. It was also agreed that the discussions and votes would be kept secret until the conclusion of the meeting. Despite the sweltering summer heat, the windows of the meeting hall were nailed shut to keep the proceedings a secret from the public. Although William Jackson was elected as secretary, his records were brief and included very little detail. Madison's "Notes of Debates in the Federal Convention of 1787," supplemented by the notes of Robert Yates, remain the most complete record of the convention. Due to the pledge to secrecy, Madison's account was not published until after his death in 1836.