An Evening with Terence McKenna at UC Santa Cruz hosted by the student organization Millbrook West. Professor Ralph Abraham, the famous chaos theorist mathematician, informed and introduced Terence to the large bright audience. "Taxonomy" defined as classification, especially in relation to its general laws and principles; that department of science or subject, which consists in or relates to classification. Terence amusingly articulates by enumerating examples of the varied forms of illusions by which humans are entertained, intrigued and frightened. This talk is a particularily anecdotal way to approach the study of the imaginal, the illusive and anomalous.