George Dalgarno (1626-1687), Didascalocophus, or the Deaf and Dumb mans Tutor, Theater in Oxford, 1680. This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author’s life plus 100 years or less.
“Figure 11.1 presents an extremely simplified, partial reconstruction of the tables, which limits itself to following only two of the subdivisions–animals with uncleft hooves and the principle passions.
The 17 fundamental genera are printed in bold capitals, and are marked with 17 capital letters. Intermediate genera and species are represented in lower case. Dalgarno also employs three “servile” letters: R signifies a reversal in meaning (if pon means love, pron means hate); V indicates that the letters that precede it are to be read as numbers; L signifies a medium between two extremes.
Umberto Eco, The Search for the Perfect Language, figure 11.1, p. 232.
See for instance how from concrete, corporeal, physical entities, signified by an N, animals are deduced. See also how, in order to reach the subdivision animal, Dalgarno introduces an intermediate division (animal/inanimate) which is neither a genus nor a species, and is not marked by any letter.
The animals are subdivided into three classes–aquatic, aerial and terrestrial. Among the terrestrial animals (k) appear those with uncleft hooves [η], or perissodactyls. Thus the character Nηk stands for the class of perissodactyls. At this point, however, Dalgarno adds several sub-species–viz. the horse, elephant, mule and donkey.
As far as the accidents (E) are concerned, see for instance how the principal passions (o) are classified as species of the sensitive (P). After this, we are presented with a list that is not dichotomized: admiration takes pom as its character, because P is the fundamental genus and o is the intermediate genus. The m, however, is just the “number” that the species admiration is assigned in the list’s order.
It is curious that, for animals, the intermediate genus is given by the third letter in the character and the species by the second vowel, while for the accidents the opposite happens.
Dalgarno acknowledges the existence of such an irregularity, without offering any explanation (p. 52). The motive is doubtless euphony; still, there seems to have been nothing to prevent Dalgarno from assigning to the intermediate genera of concrete beings vowels instead of consonants and to the species consonants instead of vowels. In this way, he could have used the same criterion throughout the table.
The problem, however, is more complex than it seems. The expression Nηk applied to the perissodactyls is motived by the divisions; only an arbitrary decision, on the contrary, motivates the decision to specify elephant with the addition of an a.
But it is not the arbitrariness of the choice itself which creates problems; it is rather that while k means “those terrestrials which are animal because they are animated and therefore physically concrete” (so that the division explains or reflects in some way the nature of the thing itself), the a at the end of Nηka (sic) only means “that thing which is numbered a on the list of perissodactyls and is called elephant.”
The same observation applies to the m in pom. All it really signifies is “position number m on the list of those sensitive accidents which are principal passions, i.e. admiration.” Since the dichotomic division does not reach the lower species, Dalgarno is forced to tack on lists in an alphabetical or almost alphabetical order.
Dalgarno (p. 42) noted, however, that this procedure was simply a mnemonic artifice for those who did not wish to learn the defining name. At the end of the book there is indeed a philosophical lexicon giving the characters for many terms in Latin.
In particular, there exists at the end of this list a special section devoted to concrete physical objects. Thus is seems that a philosophical definition of final species is possible; the only difficulty is that, given the purely exemplary nature of the lexicon, Dalgarno has left the naming of a large number of species up to the speaker, who can infer it from the tables.
Sometimes, however, Dalgarno gives taxonomically accurate examples: for instance the name for garlic, nebghn agbana (but for Dalgarno it is nebgηn agbana) is decoded by Slaughter (1982: 152) as follows: n=concretum physicum, e = in radice, b = vesca, g = qualitas sensibilis, h = sabor, n = pingue, a = partes annuae, g = folium, b = accidens mathematicum, a = affect, prima, n = longum.
But even in this instance, “the tables only classify and name up to a point; the lexicon provides the rest of the definition but not the classification” (Slaughter 1982: 152).
Dalgarno may not have considered it indispensable to arrive at a classification of complex entities in all their particularities, yet making definitions requires classification. As a result the decision on how to classify complex entities, and, consequently, what name to give them, seems left as it were to the discretion of the user of the language.
Thus, ironically, a system that was intended to provide a single set of objective and univocal definitions ends up by lending itself to the creative fancies of its users. Here are some of Dalgarno’s own suggestions (I have separated the radicals with a slash to make them more decipherable):
horse = Nηk/pot = animal with uncleft hoof/courageous [why could we not say the same of the elephant?]
mule = Nηk/sof/pad = animal with uncleft hoof / deprived / sex
camel = nek/braf/pfar = quadruped with cloven hoof/humped/back
palace = fan/kan = house / king
abstemious = sof / praf / emp = deprived / drink / adjectival
stammering = grug / shaf / tin = illness [the opposite of gug, health] / impediment / speaking
gospel = tib / sηb = teach / way of being
Dalgarno also admitted that the same object regarded from a different perspective might take different names. The elephant can be called Nηksyf (uncleft hoof / superlative) or Nηkbeisap (uncleft hoof / mathematical accident / architectural metaphor for the proboscis).
It is not a system that is at all easy to memorize. The difference between Nηke, donkey, and Nηko, mule, is minimal and easy to muddle. Dalgarno advised the reader to use old mnemonic tricks.
The name for table was fran; the name for plough was flan; Dalgarno suggested associating the first with FRANce and the second with FLANders. In this way the speaker needed to learn both a philosophical language and a mnemonic code.
Dalgarno somewhat compensates the reader for the transcendental difficulties in the lexicon and the rules of composition by providing a grammar and syntax of great simplicity.
All that remains of the categories of classical grammar is the noun along with several pronouns (I = lal, you = lêl, he = lel . . . ). Adverbs, adjectives, comparatives and even verbal forms are derived by adding suffixes to nouns.
Thus from sim (good) one can generate simam (very good) and sinab (better). From pon (love) we can get pone (lover), pono (loved) and ponomp (lovable). To translate verbs, Dalgarno thought all that was necessary was the copula: “we love” becomes “we” + present tense + copula + “lovers” (that is, “we are lovers;” see p. 65).
The notion that verbs could all be reduced to the copula plus an adjective already circulated among the Modists in the thirteenth century; it was taken up by Campanella in the Philosophia rationalis (1638) and accepted by both Wilkins and Leibniz.
Dalgarno’s treatment of syntax was no less radical (see Pellerey 1992c). Although other projects for philosophic languages preserved the Latin model, Dalgarno eliminated the declensions for nouns.
All that counted was word order: the subject preceded the verb and the verb preceded the object. The ablative absolute was rendered by temporal particles which stood for terms like cum, post or dum.
The genitive was rendered either by an adjectival suffix or by a formula of possession (shf = to belong). Shumaker has commented (1982: 155) that forms of the latter type are adopted by pidgin English, in which the phrase “master’s hand” is rendered “hand-belong-master.”
Simplified to this degree, the language seems syntactically crude. Yet Dalgarno, deeply suspicious of rhetorical embellishments, was convinced that only an essential logical structure gave a language an austere elegance.
Besides, grace, elegance and transparent clarity were given full play in the composition of the names, and for this reason, Dalgarno compared his language to the philosophical language par excellence, ancient Greek.
One final aspect of Dalgarno’s system that he shared with both Wilkins and Lodwick has been underlined by Frank (1979: 65ff). By using particles, prefixed and suffixed to names, to transform nouns into other grammatical categories, changing their meanings thereby, and inserting prepositions, such as per, trans, praeter, supra, in and a, among the mathematical accidents–and thus as equivalent to nouns–Dalgarno tended “to postulate an all-comprehending semantics which took over all, or almost all of the functions traditionally assigned to grammar.”
Dalgarno, in other words, abolished the classical distinction between categorematic terms, or terms that have independent meanings, and syncategorematic terms, or terms which acquire a meaning only within a context.
This, in logic, is equivalent to the distinction between logical variables that can be bound to specific meanings and logical connectives. This is a tendency that is contrary to the tenets of modern logic; yet it is consistent with some trends in contemporary semantics.”
Umberto Eco, The Search for the Perfect Language, translated by James Fentress, Blackwell. Oxford, 1995, pp. 231-7.