Carbolic soap Carbolic soap Carbolic soap is a mildly antiseptic soap containing carbolic acid and/or cresylic acid, both of which are phenols derived from either coal tar or petroleum sources. In 1834, German chemist Friedlieb Ferdinand Runge discovered a phenol, now known as carbolic acid, which he derived in an impure form from coal tar. In August 1865, Dr. Joseph Lister, 1st Baron Lister applied a piece of lint dipped in carbolic acid solution onto the wound of an eleven-year-old boy at Glasgow Royal Infirmary, who had sustained a compound fracture after a cart wheel had passed over his leg. After four
Name-letter effect found a positive correlation between the frequency of occurrence of letters and phonemes and how attractive they were judged to be. Zajonc extended these studies, using foreign symbols and controlling the number of exposures. This led him to formulate the mere-exposure hypothesis: the more you see something, the more you like it. Nuttin's original study showed that mere exposure can not be the cause of the name-letter effect, as letters with equal frequency were evaluated differently by people who had the letter in their names and those who did not. He also found that whereas the letter B is of