Marston MS 240     Italy, s. XV 1
William of Ockham, Summa logicae, etc.

1. ff. 1r-80v [Title, added in later hand:]  Loice de ockam [?].  [prologue:] 
Dvdum me frater et amice carissime tujs
litteris studebas jnducere vt aliquas regulas artis loyce [sic].  In vnum
tractatum colligerem collectumque...quam theologica demostrando.  [text:]  
Incipit primum capitulum de termino in generali.  Omnes loyce tractatores.
Intendunt astruere quod argumenta ex propositionibus et propositiones ex
terminis componuntur...et ideo propter breuitatem ad presens transeo. 
[colophon:]  Explicit Tractatus de sillogismis...Reuerendum doctorem
fratrem Gulielmum.  occham.  ordinis fratrum minorum.

William of Ockham, Summa logicae, Pars I through Pars III, tractatus
primus; chapter 51 of pars prima omitted.  P. Boehner, G. Gal, S. Brown,
eds., Venerabilis inceptoris Guillelmi de Ockham Summa Logicae
(St. Bonaventure, N. Y., 1974) pp. 5-502; Marston MS 240 assigned to the
second family of manuscripts "Primo respondeat" and listed on pp. 17* - 18*,
no. 22.

2. ff. 80v-91r De sillogismo demonstratiuo.  Postquam diccum
[sic] est de
sillogismo in communi.  Sequitur...que sunt hic obmissa in expositione
posteriorum aristotelis sum.  tractaturus.  Explicit liber posteriorum
siue secundus tractatus.  tertie partis loyce .G. de ocham ordinis fratrum
minorum.  de Sillogismo demonstratiuo Reuerendi doctoris.

Pars III, tractatus secundus; P. Boehner, et al., op.
cit. pp. 505-84.

3. ff. 91r-94r Incipit tertius tractatus tertie partis de obligacionibus.
et insolubilibus.  R. d. G. de Ocham...[text:]  De equipollenciis
modorum.  Quia circa propositionum modalium equipollencias et
Repugnancias sunt varie difficultates...totaliter dimitteretur intacta.
Explicit tractatus de obligacionibus et insolubilibus tertie partis loyce
Reuerendi doccoris .G. de ocham ordinis fratrum minorum.

Chapters 13-16 of Pars III, tractatus tertius, followed immediately by
chs. 39-45 (De Obligationibus) and ch. 46 (De Insolubilibus); P.
Boehner, et al., op. cit., pp. 642-44, 731-44, 744-46.

4. ff. 94r-110v De consequentiis et primo de aliquibus etiam generalibus
eiusdem.  Post sillogismum demonstratiuum dicendum est de argumentis et
consequentiis que non habent formam sillogisticam...Sed tales consequentie
non sunt formales. nec sunt vsitande.  Explicit quartus tractatus de 
consequentijs tertie partis loyce.  R. G. doccoris [sic] ordinis fratrum 
minorum.

Pars III, tractatus tertius, chs. 1-12, 17-38.  P. Boehner, et al., op.
cit., pp. 587-642, 649-731.

5. ff. 110v-124r De ultimo capitulo .scilicet. fallaciarum et primo in
generali.  Cum dictum sit de argumentis et speciebus argumentorum.  Restat 
nunc dicere. de defectibus argumentorum...[f. 124r:]  Primo Respondeat...vt
semper est declaratum.  [colophon:]
Explicit loyca. G. de ocham.  Summa doctoris ordinis fratrum minorum Edita
et composita per manus.  Magistri Antonij francisci de Iohannuzio labore
massimo et cetera.  Manus scriptoris Saluet deus dignas honores.  Quj
dedit explerj Antonio det gaudia Celi Amen.

Pars III, tractatus quartus (de fallaciis); P. Boehner, et al., op.
cit., pp. 749-849.

6. f. 124v [U]t Iuuenes in quolibet proloblemate [sic] disputationes possint
esse exercitatj et uelociter...Et continebit iste libellus quattuor
partes.  In prima parte ponentur quedam regule...vobis supponit subiectum.
f. 125r-v blank

Walter Burley, De puritate artis logicae tractatus brevior, beginning
of text only; P. Boehner, ed., Franciscan Institute Publications, Text
Series 1 (St. Bonaventure, N. Y., 1951) pp. 199-202.

Paper (thick, coarse, some deckle edges; watermarks indistinguishable),
ff. i (paper) + 125 + i (paper), 222 x 145 (195 x 110) mm.  Ca. 36-51 long
lines.  No visible remains of rulings or prickings.
I-XV 8, XVI 6 (-6, blank).  Horizontal catchwords, accompanied by lines
and flourishes in black and red, centered in lower margin, verso.
Written by a single scribe in small, cramped and highly abbreviated gothic
cursive.  Art. 6 added by two different hands.
Crude penwork initials on f. 1r in red and blue, 3-line.  The first 
incorporates a five-pointed star in red, with blue dots, and terminates with a
full-length marginal border in inner margin.  The second incorporates a
fleur-de-lis.  Other plain initials in red and/or blue throughout.  Headings
and strokes on paragraph marks and majuscules in red.
Binding:  Italy [?], uncertain date.  Backs of quires cut in for sewing.
Plain limp vellum case with holes in each cover for two ribbons.

Written in Italy in the first half of the 15th century by the scribe Antonius
Franciscus de Iohannuzio; provenance unknown.  Purchased from Dawsons of
Pall Mall in 1960 by Thomas E. Marston (bookplate).

secundo folio:  [vnum erased, followed by:]  Incomplexum

Bibliography:   Faye and Bond, p. 92, no. 240.

Barbara A. Shailor