1. Dickerson, R. E., Geis, J.: The Structure and Action of Proteins. London: Benjamin 1969
2. Here we ascribe to ?paradigm? a meaning that is approximately a hybrid of two of the senses of the word discussed by Masterman in her critique of Kuhn's usage viz. ?a concrete and observable set of habits? and ?an artifact which can be used as a puzzle-solving device?. ?Pictographic? is intended to convey elements of both symbolism and pictorialization.
3. Wotiz, J. H., Rudolfsky, S.: Chem. Britain20, 720 (1984)
4. Jung, C. G.: Psychologie and Alchemie. Zürich: Ex Libris 1972
5. Fruton, J.: Molecules and Life ? a historical essay on the interplay of chemistry and biology. New York: Wiley-Interscience 1972