Festival of Visualization

A University of Bologna textbook precisely datable to 1430 contains key texts in mathematics and astronomy in Italian and Latin. The Vatican Library has just upgraded its digitization of this treasure, Vat.lat.4825, to full color and high resolution, and you will see below how welcome this is.

This codex is a festival of visualization, including; mnemonic hands

stemmata

mathematical squares

and rotae:

There are also scatological illuminations of the sort long favoured by discerning male student customers:

See Jordanus for a full listing of the content.

It is one of the stars of a release over the past week of 67 new digitizations. My unofficial list:

1. Ross.126.pt.2,
2. Ross.129,
3. Ross.141,
4. Ross.143,
5. Ross.144 (Upgraded to HQ),
6. Ross.147 (Upgraded to HQ),
7. Ross.154,
8. Ross.161,
9. Ross.162,
10. Ross.174,
11. Ross.175 (Upgraded to HQ),
12. Ross.176,
13. Vat.lat.2418 (Upgraded to HQ), no fewer than 155 works by leading Arab and western medical scientist in this compilation dating from the 14th century. See summary in Jordanus 
    
14. Vat.lat.2525,
15. Vat.lat.2526,
16. Vat.lat.2529,
17. Vat.lat.2536,
18. Vat.lat.2545,
19. Vat.lat.2554,
20. Vat.lat.4654.pt.2,
21. Vat.lat.4685,
22. Vat.lat.4718,
23. Vat.lat.4749 (Upgraded to HQ),
24. Vat.lat.4765,
25. Vat.lat.4808,
26. Vat.lat.4809,
27. Vat.lat.4823 (Upgraded to HQ),
28. Vat.lat.4825 (Upgraded to HQ), mainly mathematical and astronomical texts in Italian and Latin (above). 
29. Vat.lat.4827, yet another mathematical codex, this one dating from 1470. See Jordanus. Among the curiosities here are contemporary exchange rates between Sicilian, Neapolitan and Venetian currency.
30. Vat.lat.4831 (Upgraded to HQ),
31. Vat.lat.4833,
32. Vat.lat.4876,
33. Vat.lat.4877,
34. Vat.lat.4882,
35. Vat.lat.4883,

    Found in the most recent list of MSS @DigitaVaticana by @JBPiggin: Boethius of Dacia, Questiones on Aristotle's Topica.https://t.co/Nd8NJSKlNc pic.twitter.com/LGTTJ3LLaU

    — Pieter Beullens (@LatinAristotle) June 10, 2019

36. Vat.lat.4889 (Upgraded to HQ),
37. Vat.lat.4900,
38. Vat.lat.4904,
39. Vat.lat.4905,
40. Vat.lat.4924, This codex contains more binding strips from an old book written in Beneventan hand a torn apart to hold this new volume together. 
41. Vat.lat.4925 (Upgraded to HQ), with reinforcing strips from the same Beneventan codex as was used to bind 4924 and 4923, of which am sample image was shown in a previous blog post.  
42. Vat.lat.4928, Breviarium Benedictinum, dated to about 1100, in a Beneventan hand. This is Beuron number 343 on account of its Vetus Latina texts of the Psalter Romanum and other biblical chants
43. Vat.lat.4931,
44. Vat.lat.4937,
45. Vat.lat.4961 (Upgraded to HQ),
46. Vat.lat.4967,
47. Vat.lat.4969,
48. Vat.lat.4971,
49. Vat.lat.4974,
50. Vat.lat.4975,
51. Vat.lat.4976 (Upgraded to HQ),
52. Vat.lat.4977,
53. Vat.lat.4980,
54. Vat.lat.4981, a 13th-century codex in Beneventan hand, termed a Collectio Canonum by Lowe.

    Vat Lat 4981 contains the text of the Decretum by Burchard of Worms, it is indeed a canonical collection!

    — GlossaeIuris (@GlossaeIuris) June 9, 2019

55. Vat.lat.4982 (Upgraded to HQ),
56. Vat.lat.4990 (Upgraded to HQ),
57. Vat.lat.5001 (Upgraded to HQ),
58. Vat.lat.5006, mathematical and astronomical texts in a compilation of the 15th century, of which Jordanus lists 14 titles.
59. Vat.lat.5018.pt.2,
60. Vat.lat.5033,
61. Vat.lat.5047,
62. Vat.lat.5051 (Upgraded to HQ),
63. Vat.lat.5055,
64. Vat.lat.5058,
65. Vat.lat.5059 (Upgraded to HQ),
66. Vat.lat.5086,
67. Vat.lat.15345,

This is Piggin's Unofficial List number 212. Thanks to @gundormr for harvesting. If you have corrections or additions, please use the comments box below. Follow me on Twitter (@JBPiggin) for news of more additions to DigiVatLib.