Earwax in the canal. Jaw movement assists this process by dislodging debris attached to the walls of the ear canal, increasing the likelihood of its expulsion. The lubrication provided by cerumen prevents desiccation of the skin within the ear canal. The lubricative properties arise from the high lipid content of the sebum produced by the sebaceous glands. In wet-type cerumen, these lipids include cholesterol, squalene, and many long-chain fatty acids and alcohols. While studies conducted up until the 1960s found little evidence supporting antibacterial activity for cerumen, more recent studies have found that cerumen has a bactericidal effect on some strains
Through the Looking Glass and What Walter Found There Peter gives a slight smile then returns his attention to Walter. A few seconds later, he looks back up down the aisle and sees the world the way the Observers see it, machine-like and devoid of most colors. His eyes widen in surprise as the episode ends. "Through the Looking Glass and What Walter Found There" was written by co-executive producer David Fury, while being directed by "24" vet Jon Cassar. The title is a reference to Lewis Carrol's 1871 work "Through the Looking Glass and What Alice Found There", better known by its shortened title "Through the Looking Glass".