Wherein we discuss a kind of cap distinguished by the planar nature of its surface.

Wherein we discuss a hat worn by a chef de cuisine (or head cook) and adorned, it is falsely said, by one hundred pleats which, it is equally falsely said, represent its wearer's knowledge of as many ways of preparing an egg for eating.

Wherein we successfully produce answers -- including an antedating of the OED -- during our search for information about a hat worn by people who cannot successfully produce answers.

In which we invite Chris -- our first guest star -- to discuss with us a hat associated with politics, barbershop quartets, gondoliers, riots, destruction of property, and summer.

Wherein we discuss a hat worn by people who are sleeping, trying to get to sleep, about to go to sleep, just up from sleeping, or trying to give an exaggerated impression of sleepiness.

Wherein we discuss a cap associated with a popular bat-and-ball game.

Wherein we discuss a hat that has three corners.

Wherein we dicuss a hat the covers the face, born of the Crimean War, and now replete with cultural associations.

Wherein we go on an etymological and historical journey to discover the nature of an alert-sounding variety of headgear.

Wherein we discuss a hat associated in equal measure with Lennon, Lenin, and Hellenic seekers after aquatic sustenance.