| Claudii Ptolemaei Pelusiensi Alexandrini Omnia quae extant opera, praeter Geographiam quam non dissimili forma nuperrime aedidimus by Claudio Ptolomeo - 1551 - 447 pages |
| Claudii Spinaei Epitome in quatuor libros Sententiarum Petri Lombardi by Claudius de Spina - 1551 |
| Claudij Ptolemaei Pelusiensis Alexandrini Omnia quae extant opera, praeter geographiam, ... summa cura & diligentia castigata ab Erasmo Osualdo Schrekhenfuchsio, & ab eodem Isagoica in Almagestum praefatione by Claude Ptolémée, Petri, Georges de Trébizonde, Schreckenfuchs - 1551 - 447 pages |
| Clementis Alexandrini omnia qvae qvidem extant opera, nunc primum e tenebris eruta Latinitateque donata, Genetiano Herueto Aurelio interprete by Clemens Alexandrinus Sanctus - 1551 - 437 pages |
| Clementis Alexandrini omniae quae quidem extant opera by Clemente de Alejandría, Gentian Hervet (trad) - 1551 - 320 pages |
| Codicis ... ex repetita praelectione libre nouem priores ... - 1551 - 1466 pages |
| Codicis ... ex repetita praelectione libre nouem priores ... - 1551 - 1466 pages |
| Codicis Dn. Iustiniani Sacratiss. Principis Ex Repetita Praelectione Libri XII by Iustinianus (Imperium Byzantinum, Imperator, I.) - 1551 - 974 pages |
| Codicis Dn. Iustiniani Sacratiss. Principis Ex Repetita Praelectione Libri XII by Iustinianus (Imperium Byzantinum, Imperator, I.), Antoine Leconte - 1551 - 1151 pages |
| Codicis Domini Iustiniani Sacratissimi Principis Ex Repetita Praelectione libri Novem priores, ad Vetustissimorum Exemplarium, atque ad ipsius etiam Noricae editionis (quam Haloandro debemus) fidem recogniti & emendati - 1551 - 1466 pages |
| Commehtarius in orationem M. T. Ciceronis pro domo sua. Ex scholis Joh. Sturmii. - Tiguri, Rodolphus Wissenbach 1551 by Michael Toxites - 1551 |
| Commentaire ... contenant la guerra d'Allemaigne, faicte par l'Empereur Charles V. es annees 1547 et 1548 ... revenue et corrige (etc.) by Luis Avila y Zuniga - 1551 |
| Commentaire contenant la guerre d'Allemagne faicte par ... Charles V. ès années 1547 et 1548 by Luis de Avila y Çuñiga, Gilles Boileau de Buillon - 1551 |
| Commentaire du seigneur Don Loys d'Auila, contenant la guerre d'Allemaigne, faicte par l'Empereur Charles V es annees 1547 & 1548 by Luis de Avila y Zuiga, Boileau de Bouillon - 1551 - 320 pages |
| Commentaria in omnes de arte rhetorica Ciceronis libros - 1551 |
| Commentaria in tit. de Verb. et rerum significatione by Bartholomaeus (Caepolla) - 1551 |
| Commentaria in tit. de Verb. et rerum significatione by Bartholomaeus (Caepolla) - 1551 |
| Commentaria R. P. Ambrosi Catharini Politi ... in omnes diui Pauli, et alias septem canonicas Epistolas ... by Ambrosius Catharinus, Bullioud, Collège de la Sainte Trinité de la Compagnie de Jésus - 1551 - 650 pages |
| Commentaria R. P. F. Ambrosii Catharini Politi Senensis, Episcopi Minoriensis, in omnes Divi Pauli et alias septem canonicas epistolas by Lancelotto Politi - 1551 - 651 pages |
| Commentaria R. P. F. Ambrosii Catharini Politi,... In omnes divi Pauli, et alias septem canonicas Epistolas,... by Ambrosius Catharinus, Bullioud - 1551 - 650 pages |
| Commentarii ... in quatuor Domini Evangelistas by Johannes Arboreus - 1551 |
| Commentarii ... in quatuor Domini Evangelistas by Johannes Arboreus - 1551 |
| Commentarii eruditissimi in titulum de Appellationibus libro Decretalium secundo, forensis negotij sectatoribus percommodi: integritatìq[ue] suae recèns ex fide restituti by Gianantonio da Sangiorgio - 1551 |
| Commentarii in constitutiones ... regias by Pierre Rebuffi - 1551 |
| Commentarii in L. Diffamari C. de. inge et Manu by Caesar Contardi - 1551 |
| Commentarii in VII libros aphorismorum Hippocratis. - Lugduni, haeredes Jacobi Juntae 1551 by Hieremias Triverius Brachelius - 1551 |
| Commentarii novem adversus pseudoevangelicam haeresim by Pierre Lizet - 1551 |
| Commentarii Reipub. Romanae illius, in exteris provinciis, bello acquisitis, constitutae by Wolfgang Lazius - 1551 - 1318 pages |
| Commentarii utriusque linguae by Joachim Camerarius - 1551 - 44 pages |
| Commentarii utriusque linguae by Joachim Camerarius - 1551 - 44 pages |
| Commentarii utriusque linguae by Joachim Camerarius - 1551 - 44 pages |
| Commentarii utriusque linguae by Joachim Camerarius - 1551 - 44 pages |
| Commentarii utriusque linguae (graecae et latinae) in quibus est: Exquisitio nominum, quibus partes corporis humani appelari solent by Joachimus Camerarius - 1551 |
| Commentarii Vincentii Lupani De Magistratibus, & Praefecturis Francorum by Vincent de La Loupe - 1551 - 62 pages |
| Commentarioli in carmina Pythagorae by Stephanus Niger - 1551 |
| Commentariorum in Astrolabium libri sex by Juan ¬de Rojas Sarmiento - 1551 |
| Commentariorum Reipublicae romanae illius, in exteris provinciis, bello acquisitis, constitutae, libri duodecim... by Wolfgang Lazius - 1551 |
| Commentariorum Vincentii Lupani De Magistratibus & praefecturis Francorum Liber secundus by Vincent de La Loupe - 1551 - 32 pages |
| Commentarius in Matthaei Evangelium by Anselmus (Cantuariensis) - 1551 |
| Commentarius Micaeli Toxitae ... in orationem M. T. Ciceronis pro domo sua by Marcus Tullius Cicero, Michael Toxites - 1551 - 173 pages |
| Commentarius Micaeli Toxitae Rhaeti Laureati Poetae, In Orationem M. T. Ciceronis pro C. Rabirio Posthumo by Marcus Tullius Cicero, Michael Toxites, Johann Sturm - 1551 - 102 pages |
| Commentarius Michaeli Toxitae Rhaeti poetae laureati in Orationem M. Tulii Ciceronis pro P. Quintio by Marcus Tullius Cicero, Michael Toxites - 1551 - 224 pages |
| Commentarius puerorum de latinae linguae elegantia & varietate by Maturin Cordier - 1551 - 551 pages |
| Commentarius puerorum de latinae linguae elegantia & varietate by Mathurin Cordier - 1551 - 551 pages |
| Commentarius puerorum de latinae linguae elegantia & varietate by Mathurin Cordier - 1551 - 551 pages |
| Commentationes in aliquot orationes M. T. Ciceronis by Quintus Asconius Pedianus, François Hotman - 1551 |
| Commentationes in aliquot orationes M. Tullii Ciceronis by Quintus Asconius Pedianus, François Hotman (sieur de la Tour), Marcus Tullius Cicero - 1551 |
| Communes jurium Sententiae by Jean Bellon - 1551 |
| Compendiosa Librorum Aristotelis de arte dialectica Isagoge by Petrus Winellus - 1551 |
| Compendium doctrinae catholicae by Pedro ¬de Soto - 1551 |
| Compendium philosophiae naturalis seu De consideratione naturalium earumque ad suum Creatorem reductione libri XII by François Titelmans ((O.F.M.)) - 1551 - 422 pages |
| Compendium philosophiae naturalis, seu De consideratione rerum naturalium, earumque ad suum Creatorem reductione libri XII by François Titelmans, Rouillé - 1551 - 432 pages |
| Concetti Di Hieronimo Garimberto. Et De Piv Avtori by Girolamo Garimberto - 1551 - 501 pages |
| Concilia Omnia Tam Generalia Quàm Particularia by Pierre Crabbe - 1551 - 1075 pages |
| Concilia Omnia Tam Generalia Quàm Particularia by Pierre Crabbe - 1551 - 1182 pages |
| Concilia Omnia Tam Generalia Quàm Particularia by Pierre Crabbe - 1551 - 1018 pages |
| Conciliorum Epitomen by Bartolome Carranza y Miranda - 1551 - 695 pages |
| Conciliorum omnium tam generalium quam particularium, quae iam inde ab apostolis in hunc usque diem celebrata by Petrus Crabbe (O.F.M.), Karel V (keizer van het Heilig Rooms Duitse Rijk), Lambertus a Briarde - 1551 - 2364 pages |
| Conciliorum omnium tam generalium quam particularium, quae iam inde ab apostolis in hunc usque diem celebrata by Petrus Crabbe (O.F.M.), Karel V (keizer van het Heilig Rooms Duitse Rijk), Lambertus a Briarde - 1551 - 2364 pages |
| Conciliorum omnium tam generalium quam particularium, quae iam inde ab apostolis in hunc usque diem celebrata by Petrus Crabbe (O.F.M.), Karel V (keizer van het Heilig Rooms Duitse Rijk), Lambertus a Briarde - 1551 - 2364 pages |
| Conciones sacrae ac variae praedicandorum Evangeliorum ... formulae by Leonhard Culmann - 1551 |
| Concordantiae breviores omnium ferme materiarum ex sacris Bibliorum libris... per V. P. Anthonium (Broickwy) a Konygstein,... ab authore jam postremum recognitae... Monotessaron Evangeliorum, studiose et rationabiliter ordinatum, necnon per singula Evange by Antonius Broickwya a Konygstein - 1551 |
| Concordantiae maiores Sacrae Bibliae - 1551 - 888 pages |
| Concordantiae maiores sacrae Bibliae [Hugonis a Sancto Charo], Summis uigilijs iam denuo ultra omnes editiones castigatae, et auctae, per Franciscum Arolam... [Praef. S. Gryphii] by Gryphius - 1551 - 704 pages |
| Concordata inter Leonem X. Pont. Maximum et Franciscum Francoru[m] regem christianissimum super sacerdotiorum gallicorum negocio... by Du Pré - 1551 - 156 pages |
| Concordata inter Sanctissimum Do. Nostrum Papam Leonem X & fedem apostolicam ac christianissimum Do. nostru[m] regem Franciscum & regnum edita by Església Catòlica - 1551 - 391 pages |
| Concordata super sacerdotiorum gallicorum negocio. Textus pragmaticae sanctionis, opera Cosmae Guymier emendatus et marginalibus scholiis illustratus. Regulae, ordinationes et constitutiones cancellariae romanae curiae communes et generales (etc.) by papa Leo X. (et Franciscus I., rex Franciae), Franciscus I. Franciae rex - 1551 |
| Concordata... Cum interpretationibus... Petri Rebuffi by Pierre Rebuffi - 1551 |
| Conradi Gesneri... Historiae animalium lib. I de quadrupedibus viuiparis... by Konrad Gesner - 1551 - 1104 pages |
| Consensio in re sacramentaria cum ministris Tigurinae ecclesiae. - Genevae, Joannes Crispinus 1551 by Johannes Calvin - 1551 |
| Consilia by Dinus (Mugellanus), Benedictus ¬de Vadis - 1551 - 136 pages |
| Consilia by Dinus (Mugellanus), Benedictus ¬de Vadis - 1551 - 136 pages |
| Consilia D. Laurentii Sylvani... nunc primùm in lucem emissa... by Laurentius Silvanus, Payen - 1551 - 62 pages |
| Consilia Dn. Nicolai Boerii ... by Nicolas Bohier - 1551 - 124 pages |
| Consilia seu responsa iuris by Hieronymus Schurff - 1551 |
| Consilia ¬Laurentii ¬Sylvani by Lorenzo Silvano - 1551 |
| Constitution of the United States Annotated by United States - 1551 |
| Constitution of the United States Annotated by United States - 1551 |
| Constitutiones Ordinis Fratrum Eremitarum Sancti Augustini Nuper Recognitae, Et Non Nulla Alia, Quorum Seriem Sequens Pagina Indicabit - 1551 |
| Contemptus mundi - 1551 |
| Contemptus mundi nuevamente romançado - 1551 |
| Copia di una lettera venuta ... da Ravenna in quale si contienne l'horrendo Caso intravenuto in la Pignera da Ravenna - 1551 |
| Cornelii Tacti Equitis Ro. ab Excessu Augusti Annaluim Libri Sedecim by Corneli Tàcit - 1551 - 875 pages |
| Corpus iuris Legum per modum Institutionum - 1551 |
| Corpus juris civilis Justiniani - 1551 |
| Corpus juris civilis Justiniani - 1551 |
| Corpus juris civilis Justiniani - 1551 |
| Corpus juris civilis Justiniani - 1551 |
| Corpus juris civilis Justiniani - 1551 |
| Corpus juris civilis Justiniani - 1551 |
| Corpus legum per modum institutionum ... Jsagoge Joannis Appelii in IV libros Institutionum Justiniani Imperatoris per dialogum by Johannes Apel - 1551 |
| Corte instructie ende onderwijsinghe M. Johannes Carethani, vanden aderlaten, ende die beduydinghe des bloets. Met noch een tractaet van den tanden te trecken, ende die onderhoudinghe van dien ... by Johannes Charethanus - 1551 |
| Cronica del sancto rey don Fernando tercero, que gano a Sevilla y a to da el Andaluzia (emendada por Diego Lopez) - 1551 |
| Cronica del santo Rey do Ferna[n]do tercero deste nobre que gano a Seuilla y a toda el Andaluzia. Cuyo cuerpo esta enla sancta yglesia de Seuilla - 1551 - 80 pages |
| Curationes Medicinales by João Rodrigues de Castelo Branco - 1551 - 391 pages |
| D'onghevalueerde gauden ende zelveren munte, van divęrschen coningrijcken, ... landen ende steden - 1551 - 192 pages |
| D. Erasmi Roterodami De praeparatione ad mortem liber unus by Desiderius Erasmus Roterodamus - 1551 |
| D. Joamis Thauleri ... Sermones de temore et de Sanctis totius anni by Joannes Thaulerus - 1551 - 921 pages |
| Das alle verfolger der Kirchen Christi zu Magdeburgk Christi d. Herrn selbs verfolgen by Matthias Flacius - 1551 |
| Das alle verfolger der Kirchen Christi zu Magdeburgk, Christi des Herrn selbs verfolger sindt by Matthias Flacius - 1551 - 16 pages |
| Das Buch Esther... Ausgelegt by Johannes Brenz, Johann Spangenberg - 1551 - 560 pages |
| Das der Mensch allein durch den Glauben an Jhesum Christum aus lauter Gnaden und on des Gesetzes Werk für Gott gerecht und selig werde(etc.)-(Erffurdt, Gervasius Sthürmer) 1551 by Hieronymus Wittich - 1551 |
| Das Doctor Pomer vnd Doctor Maior mit iren Adiaphoristen ergernis vnnd zurtrennung angericht, Vnnd den Kirchen Christi, vnüberwintlichen schaden gethan haben by Nicolaus von Amsdorff - 1551 - 24 pages |
| Das erst Büchlein Esre von erbawung des gefallenen Tempels und Hauß Gottes by Johann Wild - 1551 |
| Das itzund die rechte zeit sey, Christum vnd sein Wort zu bekennen, vnd auff keine andere zu warten sey by Nicolaus ¬von Amsdorff - 1551 - 22 pages |
| Das Leiden und Auferstehung Jesu Christi by Johannes Bugenhagen - 1551 |
| Das new Testament durch Hieronymum Emser verteutscht by Biblia germanice, Hieronymus Emser - 1551 |
| Das nie nöter gewest ist wider den Römischen Antichrist zu schreiben, vnnd predigen, denn jtzund zu dieser zeit do die Adiaphoristen mit gewalt in jhrenn schrifften dringen, da man sich vnter den Bapst begeben ... sol by Nicolaus ¬von Amsdorff - 1551 - 16 pages |
| Das unser lieber Herr Jhesus Christus, Warer Gott und Mensch, sampt dem Vater und heiligen Geist, durch den Glauben in allen waren Christen wone, Und ir Gerechtigkeit sey by Andreas Osiander - 1551 - 16 pages |
| Daß nie nöter gewest ist, wider den Römischen Antichrist zu schreiben by Nicolaus von Amsdorff - 1551 |
| Dbeghintsel - 1551 - 72 pages |
| Dboeck van exceptien inden rechte by Jacob Salwechter - 1551 - 112 pages |
| De actis veris sextae Synodi ... liber by Francisco de Torres - 1551 |
| De animae immortalitate dialogus, de resurrectione dialogi duo, de mundi excidio dialogus. - Parisiis, Reginaldus Calderius 1551 by Carolus de Bouelles - 1551 |
| De arte dicendi by Aristoteles, Martin Borrhaus, Hermolaus Barbarus (Iunior) - 1551 |
| De Arte supputandi libri quattuor by Cuthbert Tunstall - 1551 - 426 pages |
| De arte supputandi, libri IV, Sturmius tradidit. Appendix ex Budaei libro de asse excerpta by Cuthebert Tunstall - 1551 |
| De carminibus ad veterum imationem artificiose componendis praecepta bona by Georg Sabinus - 1551 - 88 pages |
| De carminibus ad veterum imitationem artificiose componendis praecepta. Enumeratio eorum, quae in docendo praecipue sequenda esse videantur, graece et latine exposita a Joachimo Camerario by Georgius Sabinus - 1551 |
| De Charitativo subsidio tractatus doctus, iuxtà ac elegans... Authore Remigio de Gonny... by Remi de Gonny, Payen - 1551 - 10 pages |
| De ciuilitate morum puerilium per Des. Erasmum Roterodamum libellus, ab authore recognitus et scholijs illustratus a Gisbertum Longolium Vltraiectinum by Didier Érasme, Longolius - 1551 - 64 pages |
| De civilitate morum puerilium by Desiderius Erasmus Roterodamus - 1551 |
| De civilitate morum puerilium by Desiderius Erasmus Roterodamus - 1551 |
| De clericis in ecclesia ordinandis Isagoge by Friedrich Nausea - 1551 |
| De conflagratione agri puteolani by Simon Portius - 1551 - 8 pages |
| De conflagratione agri Puteolani Epistola by Simone Porzio - 1551 |
| De conflagratione agri Puteolani epistola. -Florentiae 1551 by Simon Porzio - 1551 |
| De conflagratione agri Puteolani, Simonis Portii Neapolitani epistola by Simone Porzio, Torrentino - 1551 - 8 pages |
| De conjugio commonefactiones by Philipp Melanchthon - 1551 |
| De Conscribendis epistolis opus Des. Erasmi Rot by Didier Érasme, Gryphius - 1551 - 335 pages |
| De consultationibus medicis ... liber by Giovanni Argenterio - 1551 |
| De contemptu mvndi - 1551 |
| De corporis et sanguinis Jesu Christi sacrificio homiliae XIIII. by Antonio Pucci - 1551 |
| De dialectis diversis declinationum Graecanicarum tam in verbis quam in nominibus ... by Hadrianus Amerotius - 1551 |
| De dialectis diversis declinationum Graecanicarum tam in verbis quam in nominibus ... by Hadrianus Amerotius - 1551 |
| De disciplinis libri XX by Juan Luis Vives - 1551 |
| De disciplinis libri XX by Juan Luis Vives - 1551 |
| De disciplinis libri XX (etc.) by Johannes Ludovicus Vives - 1551 |
| De disputatione inter disceptantes, dialectice instituenda, libellus. Praeterea fundamentum logices by Augustinus Hunnaeus - 1551 |
| De diuinis, apostolicis atque ecclesiasticis traditionibus, deque authoritate ac vi earum sacrosancta adsertiones ceu libri dece[m] by Martín Pérez de Ayala, Al segno della Speranza (Venecia) - 1551 - 672 pages |
| De Divinis apostolicis atque ecclesiasticis traditionibus, deque authoritate ac vi earum sacrosancta, adsertiones... authore R. P. D. Martino Peresio Aiala,... by Martin Perez de Ayala - 1551 - 672 pages |
| De dolore by Simon Portius - 1551 - 66 pages |
| De dolore Simonis Portii Neapolitani liber by Simone Porzio, Torrentino - 1551 - 66 pages |
| De Domino nostri Jesu Christi & novissoma omnium mortuorum resurrectione, libri 3 by Friedrich Nausea - 1551 |
| De duplici copia uerborum ac rerum, commentarij duo by Didier Érasme, Frellon, Marcel - 1551 - 319 pages |
| De Dvplici Copia Verborvm Ac Rervm, Commentarii Dvo by Desiderius Erasmus - 1551 - 319 pages |
| De Etruriae regionis, quae prima in orbe Europaeo habitata est originibus, institutis, religione et moribus (etc.)- Florentiae 1551 by Guillaume Postel - 1551 |
| De eucharistia tractatulus. - o.O. 1551 by Barptolemaeus Sylvius - 1551 |
| De figuris Sententiarum ac verborum... by Publius Rutilius Lupus - 1551 |
| De formando studio in quolibet artium ... genere consilium by Jodocus Willich - 1551 |
| De historia stirpium commentarii insignes by Leonhart Fuchs - 1551 |
| De historia stirpium commentarii insignes by Leonhart Fuchs - 1551 |
| De humani corporis fabrica by Leonhart Fuchs - 1551 - 424 pages |
| De humani corporis fabrica by Leonhart Fuchs - 1551 - 404 pages |
| De humani corporis fabrica epitomes pars prima by Leonhart Fuchs - 1551 - 338 pages |
| De Imitatione Christi by Thomas (a Kempis) - 1551 |
| De incarnatione Verbi Domini, consonantia quattuor euangelistarum... , Ioanne Maria Verrato Ferrarien. Carmelita, autore by Jean-Marie Verrati - 1551 |
| De iurisdictione by Antonio de Gouvêa - 1551 |
| De L'Amour by Leo (Hebraeus) - 1551 - 300 pages |
| De L'Amour by Leo (Hebraeus) - 1551 - 418 pages |
| De la filosofia morale libri dieci. Sopra li dieci libri de l'Ethica d'Aristotile by Felice Figliucci - 1551 |
| De la lingua (Fiorentina) by Pierfrancesco Giambullari - 1551 |
| De la maniere de preseruer de la pestilence, & den guerir, selon les bons autheurs by Benoît Textor, Tournes, Gazeau - 1551 - 155 pages |
| De la vida bienaventurada by Lucius Annaeus Seneca (Philosophus) - 1551 |
| De Lapsu Et Restituta Hominis Integritate by Johannes Eblinger - 1551 - 44 pages |
| De laudibus Graecarum literarum oratio by Conrad Heresbach - 1551 - 102 pages |
| De laudibus Provinciae libri tres et centum de Annibale Exametri. - Parisiis, Dodu 1551 by Petrus Quiqueran de Beaujeu - 1551 |
| De lege Coelibatus ... oratio by Stanisław Orzechowski - 1551 - 283 pages |
| De Magistratibus Atheniensium Liber by Guillaume Postel - 1551 - 162 pages |
| De magistratibus Atheniensium liber ... postremo recognitus et auctus. - Basileae (1551). by Guillaume Postel - 1551 |
| De Magistratibus et republica Venetorum libri quinque, authore Gaspare Contareno patricio Veneto... by Gasparo Contarini, Zeno, Collège de la Sainte Trinité de la Compagnie de Jésus - 1551 - 10 pages |
| De magistratibus et republica Venetorum libri quinque. - Venetiis, Baldus Sabinus 1551 by Gasparo Contarini - 1551 |
| De Magistratibvs Et Republica Venetorum by Gasparo Contarini - 1551 - 134 pages |
| De magistratibvs et repvblica Venetorvm libri quinque by Gasparo Contarini - 1551 - 134 pages |
| De maniere om een proces te voeren... by Jacob Salwechter - 1551 |
| De ministro ecclesiae sermones III. (etc.)-Tiguri, Froschoverus 1551 by Otho Werdmüller von Elg - 1551 - 94 pages |
| De morbis internis curandis Lib. 1 by Abū-Zakarīyā Yūḥannā Ibn-Māsawaih - 1551 |
| De morbis internis curandis liber unus by Mesue, Mesuë le Jeune, Vincent, Frellon, Bouchetal, Bouchetal de Coulange - 1551 - 493 pages |
| De morbis internis curandis liber unus by Mesuë le Jeune, Frellon, Bibliothèque royale - 1551 - 493 pages |
| De morbis internis curandis liber unus by Johannes Mesue, Pietro D'Abano, Johannes Raenerius - 1551 - 493 pages |
| De morbo gallico liber by Benedetto Vettori - 1551 |
| De occulta philosophia by Heinrich Cornelius Agrippa von Nettesheim - 1551 |
| De octo orationis partibus Donatus graecus by Petrus Leo Sosander - 1551 |
| De octo partibus orationis methodus, quaestiunculis puerilibus undique collectis illustrata per Leonhardum Culmannum by Aelius Donatus - 1551 |
| De octo partium orationis constructione libellus ... by Desiderius Erasmus Roterodamus - 1551 |
| De optimo genere disputandi by Simon ¬de Vallambert, Marcus Tullius Cicero - 1551 |
| De optimo genere disputandi colloquendique ad Ianum Gontaldum Bironem by Simon de Vallambert - 1551 - 57 pages |
| De Origine et Autoritate Verbi Dei, & quae Pontificu[m], Patrum & Conciliorum sit autoritas, admonitio by Georg Maior - 1551 - 110 pages |
| De perfecto mundi contemtu by Dionysius (Cartusianus) - 1551 |
| De peste by Janus Cornarius - 1551 - 136 pages |
| De pestilentiae malo Commentaria by Johann Hener - 1551 |
| De philosophia by Marcus Tullius Cicero - 1551 - 621 pages |
| De philosophia by Marcus Tullius Cicero - 1551 - 507 pages |
| De placitis Philosophorum, physicorum decretorum epitomes, libri quinque by Plutarchus - 1551 |
| De prima philosophia by Aristoteles - 1551 |
| De primogenitura tractatus super difficili & satis tractata quaestione per antiquos & neotericos doctores, an filius secundogenitus praeferendus sit nepoti ex primogenito mortuo, viuente auo, et nouiter stante dispositione legis mentalis Lusitaniae, quis eorum sit praeferendus by Diogo de Sa, Le Jeune - 1551 - 162 pages |
| De primoradio felicique successu urbis Venetae Opusculum by Gregorio Oldovini - 1551 |
| De puella germanica, quae fere biennium vixerat sine cibo potuque ad Paulum III. P. M. Disputatio by Simone Porzio - 1551 |
| De puella Germanica, quae fere biennium vixerat sine cibo, potuque ... by Simone Porzio - 1551 - 16 pages |
| De Purgatorio animarum post hanc vitam expiandarum by Jean Tavernier - 1551 |