Creosote removed; the "heavy oil", which sinks; and the "anthracene oil", which when cold is mostly solid and greasy, of a buttery consistence. Creosote refers to the portion of coal tar which distills as "heavy oil", typically between 230–270 °C, also called "dead oil"; it sinks into water but still is fairly liquid. Carbolic acid is produced in the second fraction of distillation and is often distilled into what is referred to as "carbolic oil". Commercial creosote will contain substances from six groups. The two groups occur in the greatest amounts and are the products of the distillation process—the "tar acids",
Name-letter effect suggests that if the name is liked then the name letters will be liked too. This would occur through repeated visual association of the name letters with the name. Martin and Levey defined evaluative conditioning as a variation of classical conditioning in which we come to like or dislike something through an association. Given the observation that our own name stands out among others as quite an attractive stimulus, as Cherry found in the cocktail party effect, it could be that the name-letter effect results from evaluative conditioning. Feys set up a controlled study with Flemish subjects, pairing unfamiliar symbols