(This is the third in a series of posts on eponyms.)
Within the nightshade family of plants is the genus Nicotiana, including more than 70 species of tobacco. Both the genus name Nicotiana and nicotine, the alkaloid that is the principal constituent of the tobacco leaf, are derived from the name of Jean Nicot de Villemain (1530–1600), a French diplomat and scholar. As France’s ambassador to Portugal, Nicot sent tobacco seeds that had originated in the New World to Paris in 1560; he also recommended tobacco to the queen, Catherine de Medici, for migraine headches, thus introducing medicinal use of tobacco to the French court.
The literature on nicotine is inseparable from the literature on tobacco and has many aspects. For example, from a social welfare perspective, tobacco abuse is classed in 362.296 Tobacco as a subdivision of 362.29 Substance abuse (for example, Smoking.drugabuse.gov: Nicotine addiction ... and other dangers of tobacco use); from a human toxicology persective, tobacco is classed in 615.9523952 (built with 615.952 Plant poisons, plus 3952 from 583.952 Solanaceae [the scientific name for the nightshade family], following the add instruction at 615.9523–615.9528 Specific plant poisons; for example, Toxicology: Tobacco-specific n-nitrosamines: Recent advances); from an agricultural perspective, tobacco is classed in 633.71 Tobacco as an alkaloidal field crop (for example, The culture of tobacco). Other appropriate numbers can be seen by browsing the Relative Index under Tobacco, Tobacco abuse, Tobacco industry, etc. No interdisciplinary number for nicotine or tobacco is given.
Works on Jean Nicot de Villemain as a French diplomat should be classed in 327.440092 Foreign relations of France—biography (built with 327 International relations, plus T2—44 France, plus T1—0092 Biography [the use of 00 for standard subdivisions is given in a footnote], following the add instructions at 327.3–327.9 Foreign relations of specific continents, countries, localities). (The Manual note at T1—092 Biography indicates that for public figures, greatest weight should be given to the highest office reached, after which it specifies that 327.3–.9 should be used for ambassadors.) While Nicot may be best known for introducing the use of tobacco to France, his most significant work was the compilation of Thresor de la langue françoyse, tant ancienne que moderne, perhaps the first modern dictionary of the French language. Works on Jean Nicot as a French lexicographer should be classed in 443.092 French lexicographers (built with 44(0) French, plus T4—3 Dictionaries, plus T1—092 Biography). Although lexicography is in the class-here note at T4—3028 Auxiliary techniques and procedures; apparatus, equipment, materials, in the preference table for Table 1, T1—092 Biography is higher than T1—028 Auxiliary techniques and procedures; apparatus, equipment, materials.
But what about a comprehensive biography of Jean Nicot? The Manual note at T1—092 Biography gives the following instructions: “Use the number for the subject of the person’s most noted contribution for the comprehensive biography of the person. If the person made approximately equal contributions to a number of fields, use the number for the subject that provides the best common denominator, giving some extra consideration to the person’s occupation.” The introduction of tobacco to the French court, from which the use of tobacco was further disseminated throughout Europe, was a “contribution” of significant effect, marked by the eponymous use of his surname for tobacco’s scientific name and for its chief chemical compound. But however significant the effects of his actions with respect to tobacco, his ambassadorship was of only 2-3 years’ duration. The remaining 40 years of his life were spent as a man of learning. No number would seem to provide a best common denominator across the range of his contributions. The Manual note subsequently instructs: “Class an individual biography in the number most nearly covering the history and civilization of the place and time of the activity emphasized when a work is not clearly associated with any subject but is clearly associated with a place, even in cases when a person’s activity may not approximate the whole of the most specific period.” Consequently, a comprehensive work on Jean Nicot is best classed in 944.029092 (built with 944.029 Historical periods of France—reigns of Francis II, Charles IX, Henry III, 1559–1589, plus T1—092 Biography).