“There is a safety mechanism in place [to ensure the perambulator doesn't turn back into a purse with a baby in it] : if anything weighing more than a pound and a half-about the weight of a three-volume novel-is in the carriage of the perambulator, it will not transform.” HumorousSillyImportance Of Being EarnestPerambulator Book:All Men of Genius Source: All Men of Genius