ABELARD: LOGICA INGREDIENTIBUS
				   
LI 1 = Glosses on Porphry's "Isagoge"
LI 2 = Glosses on Aristotle's "Categories"
LI 3 = Glosses on Aristotle's "Perihermeneias"
LI 4 = Glosses on Boethius's "De syllogismo categorico"   [*]
LI 5 = Glosses on Boethius's "De syllogismo hypothetico"  [*]
LI 6 = Glosses on Boethius's "De divisione"               [*]
LI 7 = Glosses on Boethius's "De topicis differentiis"

     * = no known text

The title "Logica ingredientibus" is derived from the incipit. No
single exemplar of the whole work exists. There are four primary
witnesses, each from the twelfth century:

A  =  MS Milan, Biblioteca Ambrosiana M63sup. ff.1ra-72rb

      (Geyer refers to this manuscript as A in his edition of LI
      and as A1 in his edition of LNPS.)

B  =  MS Berlin, Preussischer Kulturbesitz lat.fol.624 ff.97r-146r

M  =  MS Paris, Bibliotheque Nationale cod.lat.7493 ff.168r-184r

T  =  MS Paris, Bibliotheque de l'Arsenal cod.lat.910 ff.120vb-121rb

In addition, there are three secondary witnesses from the twelfth
century that consist in or include pastiches of Abelard's commentary,
and can therefore be useful in establishing his text:

S  =  MS Milan, Biblioteca Ambrosiana M63sup ff.74ra-91vb

      (Anonymous gloss on the Isagoge called the *Glossae secundum
      vocales*, a pastiche of LI and LNPS. Transcribed in Ottaviano
      [1933] 106-207. Geyer calls this manuscript A2 in his edition
      of LNPS. The same manuscript includes the bulk of LI.)

P  =  MS Paris, Bibliotheque Nationale cod.lat.13368 ff.195ra-218v

      (Anonymous gloss on the Categories. Pastiche of LI 2. There
      is no edition. The same manuscript includes the Introductiones
      paruulorum.)

V  =  MS Paris, Bibliotheque Nationale cod.lat.15015 ff.180ra-199ra

      (Anonymous gloss on the De interpretatione, called the *Glossae
      doctrinae sermonum* from its incipit. Pastiche of LI 3. There
      are close parallel passages in the anonymous gloss on Porphyry's
      Isagoge found in W = MS Vienna, Pal.lat.2486 ff.4ra-60vb and in
      the incomplete anonymous commentary on the De interpretatione
      found in B ff.87va-96vb. There is a transcription of ff.180ra-
      180va given in De Rijk [1967] Vol. II-1 210-212, which has
      several misreadings. Other extracts are found in Cousin [1855]
      326-333; De Rijk [1962] 613-615, partially corrected against W
      and B; De Rijk [1966] 46-52.)

It is likely that Abelard conceived the *Logica ingredientibus* as a
full cycle of glosses on the eight primary sources of the logica
vetus: some internal cross-references support this, and it is
suggested by the plan of the *Introductiones paruulorum* and the
*Dialectica*. Under this assumption, we can describe the state of the
text as follows.

LI 1	Glosses on the "Isagoge". Primary witness A (complete),
        secondary witness S. The material covering universals was
        partially edited in Rosmini-Serbati [1963] 10-17 (originally
        published in 1857). References are to the edition, based on A
        alone, in Geyer [1919] 1-109.

LI 2	Glosses on the "Categories". Primary witness A (complete),
	secondary witness P. There is an edition, based on A alone, 
	in Geyer [1921] 111-305.

LI 3	Glosses on the "De interpretatione". Primary witnesses A (to
	c.13) and B (complete), secondary witness V. Edition based on
	all witnesses currently in preparation by Klaus Jacobi and Christian
	Strub, with a separate edition of V by Peter King, to appear in 
        the Corpus christianorum: continuatio mediaevalis. Some older 
	editions of the text are as follows:

	o Edition based on A alone of the glosses on De interpretatione
          1-12 in Geyer [1927] 307-483.7. Minio-Paluello [1958] lists
          in an appendix some variant readings in B to the text
          published in Geyer [1927] 307-333 alone, and other selected
          passages in 333-483. De Rijk [1982], Jacobi [1985], and Lewis
          [1987] offer corrections to various passages on the basis of
          both A and B.

	o Edition based on A and B of the glosses on De interpretatione
          xii-xiii in Minio-Paluello [1958] 1-29.15. Geyer [1927] 483.7-
          497.19 uses A alone. Geyer [1927] 497.20-503.28 (end) is
          spurious; A is incomplete at this point.

	o Edition based on B alone of the glosses on De interpretatione
          13-14 in Minio-Paluello [1958] 29.16-108.27.

LI 4	Glosses on the "De syllogismo categorico". No known witnesses.

LI 5    Glosses on the "De syllogismo hypothetico". No known witnesses.
	There are two reasons to think that such glosses existed.
	First, in LI 2 291.24-26 Abelard writes "sicut alibi ostendum
	est, ubi scilicet de hypotheticis propositionibus disputabitur".
	Second, in LI 3 389.7 Abelard writes "de quibus in
	hypotheticis disseremus".

LI 6	Glosses on the "De Diuisione". No known witnesses, and no
	apparent references to such a work (if it ever existed).

LI 7	Glosses on the "De topicis differentiis". Primary witnesses M
	(complete) and T (fragmentary).

	o Edition based on M alone in Dal Pra [1969] 205.4-330.17.
          Green-Pedersen [1977] 127-128 called attention to T, described
          in Green-Pedersen [1984] 424-425 (under the heading B.12).
          The material in T corresponds only to Dal Pra [1969]
          256.34-263.23.

        The attribution of these glosses to the Logica ingredientibus
        rather than to the Introductiones parvulorum has been disputed,
        but two points make the attribution secure: (i) the style of this
        gloss is unlike the other glosses found in the Introductiones
        parvulorum; (ii) there is a reference to glosses on the Topics in
        LI 3 327.34-35, apparently to Dal Pra [1969] 248.23-249.1.