Kleftnobulism is a humorous representation of university courses that are obscure, arcane, recondite, esoteric, or perhaps too abstract. One may visualize riding the gritty New York subway to take such a course, perhaps taught in a mad style by a professor A. Neuman. Consider the axolotl as a kind of salamander, then consider the archetype of all possible salamanders, in the world of abstract thought. Preparation of the hornslip may be part of the syllabus. Study the abstract mathematical symbols, but the subway obtrudes. It is wise to reserve some awareness of the subway and its denizens. By contrast, the courses we currently offer have a practical motivation. What had seemed to be obscure now becomes clear and with purpose.