The volume, almost entirely in the hand of Mylne, begins (folio i verso) with an index (extra entries have been added later; those for the letters B, C, D, K and M continue on folio v verso, those for P on folio vi verso); there follows (page 1) a transcript of Stewart`s historical collections as in Stewart`s own manuscript (Adv.MS.22.1.14) with most of the additions found also in the transcript Adv.MS.34.3.11, and further additions, some not by Mylne; finally (page 352) come the transcripts from Hay`s collections and elsewhere.

The transcripts from Steuart correspond to his manuscript as follows:

Adv.MS.34.3.12, folio vi and pages 1-6 = Adv.MS.22.1.14, folios 159-162 (but the list of events, here on pages 3-4, is there at the beginning of the section);

pages 18-71 = folios 162 verso-179 verso;

pages 77-157 = folios 180-202;

pages 161-236 = folios 204 verso-232;

pages 316-330 = folios 233-238.

The additions also in the other transcript are:

pages 7-17 = Adv.MS.34.3.11, folios 4 verso-8 verso;

pages 72-76 = folios 27-29;

pages 237-315 = folios 95-132;

pages 331-352 = folios 138-144 verso.

Mylne has himself added at a later date on page 184 a charter of Edward III concerning Coldingham (from Hay`s). An unidentified contemporary hand has added on pages left blank `A short discourse concerning the originall of Lay patronages` with regard to a dispute in Haddington in 1681 (page 48), the foundation charter of the collegiate church of Crichton, 1449 (page 157) (printed in ‘Collegiate Churches in Midlothian’, page 306), and the seal of cause of the Incorporation of Tailors of Edinburgh, 1500 (page 159).

The transcripts from Hay consist of charters and papers on ecclesiastical matters, from Adv.MSS.34.1.10(i) and 32.6.2. Despite the title there is almost as much material from other sources, mostly indicated by Mylne himself; two are printed (the Chronicle of Melrose and ‘Scotorum Historiae’ by Boetius), the rest manuscript - the public records, a copy of Hope and Durie`s alphabetic practicks similar to Adv.MS.24.2.3, and another volume of practicks belonging to Robert Govan, writer in Glasgow. A fuller list of these additions is available.

The transcripts from the collection of Richard Hays, and elsewhere, are as follows:

Notes [of 12 deeds, 1341-1489] out of Edinburgh Castle (page 352): ‘The register of the Privy Seal of Scotland’ (Edinburgh), vi, number 372; ‘The register of the Great Seal of Scotland’ (Edinburgh), i, appendix ii, 1766; ‘The register of the Great Seal of Scotland’, i, appendix i, 119, ‘The register of the Privy Seal of Scotland’, vi, number 39; Charter, undated, by Murdac of Menteith of the lands of Aberfoyle; Precept, 8 April 13--, of David II to the Countess of Angus; Retour preceding ‘The register of the Privy Seal of Scotland’, vi, number 368; Confirmation, 7 March 1477, of Beltries by resignation of Alexander Steuart to James III for the Duke of Rothsay; ‘The register of the Great Seal of Scotland’, ii, number 1976; Comprising at the instance of the Earl of Bothwell against the Earl of Rothes, 18 October 1495; ‘The register of the Great Seal of Scotland’, ii, number 1845; Charter, 1 July 1489, of James VI to the Earl of Rothes as vice-comes of Fife.

Ex MS. cod de Melros, chiefly obituaries; presumably taken from the edition of the Melrose Chronicle in ‘Rerum Anglicarum scriptores veteres’, volume 1, pages 135-244. (Page 353.)

‘Inventar of [12] wreats [chiefly in favour of members of the Erskine family] found in a trunk belonging to the deceast Lord Whytlaw qch were taken out … in order to be inventared by Mr Wilson ane of ye under clerks of session to be given up to the Earle of Marr’. (Page 356.)

Ane compendious notation of maters interprysed & done sen ye Queens Maj comeing out of France …’ 1561[-1567] [from ‘Practicks’ by Hope and Durie, volume 3, last leaf; cf. Adv.MS.24.2.3 (3), folio 265]. (Page 358.)

‘Followes Lawes made be certane Kings of Scotland as is contained in the Cronicle’ (from ‘Practicks’ by Hope and Durie, volume 3, 12 11. from end; cf. Adv.MS.24.2.3 (3), folio 350). (Page 360.)

‘Accompt of the several Shreffs Steuarts and Baillies in Scotland taken out of the third volume of Hope Durie &c there practiques about the midle yrof after the letter R’ (from Practicks belonging to Robert Govean, writer in Glasgow, folio 54). (Page 365.)

“Accompt of the King’s propertie and of the severall forfeit lands annexed to the crown (Practicks belonging to Robert Govean). (Page 366.)

‘Some things extracted out of the books of debaites that are keiped in the castell of Edr for informing of the maner of justice administrat in civill causes befor the erecting of ye Colledge of Justice’, [1470-1489] (Practicks belonging to Robert Govean). (Page 368.)

‘Institution of the Colledge of Justice … directions from his Matie for ordering [corrected from: ordaining] of ye sessioun’ (Practicks belonging to Robert Govean). (Page 371.)

League King Achaius of Scotland with Charls le Mayne King of France and Emperor … 809’ (from ‘Scotorum historiae’ by Boetius, lib. 10, cap 3, page 216, edition not identified), followed by notes on the Franco-Scottish alliance down to 1558. (Page 372.)

‘Indenture betwixt King Robert Bruce and his nobles’, [15 July] 1326 (transcribed into the Act of Parliament 1327; ‘Acts of the Parliament of Scotland', i, 483). (Page 374.)

‘Renunciation be the Earl of Angus of the privilege of the first vote and place in Parliament, [14 June] 1633 (‘Acts of the Parliament of Scotland', volume 10. (Page 375.)

‘Representation Wm Douglas of Cavers anent his hered[itary] shreffschip of Roxburgh. Councill records 26 June 1633’ (not in ‘Register of the Privy Council’). (Page 376.)

‘The valuation of coins mentioned in scripture. Value of foreign coins wt English money. The s[eve]rall difference of pounds and livres. Weights & measures. The difference of miles used by ye Europeans’. (Page 377.)

Dipplomata varia [from Hay’s collections]: Adv.MS.34.1.10 (i), folio 201 (page 384); Adv.MS.34.1.10 (i), folio 210 verso (page 388); Adv.MS.34.1.10 (i), folio 212 (page 389); Adv.MS.34.1.10 (i), folio 218 (page 391); Adv.MS.34.1.10 (i), folio 221 (page 391); Adv.MS.34.1.10 (i), folio 244 verso (page 396); Adv.MS.34.1.10 (i), folio 248 (page 398); Adv.MS.34.1.10 (i), folio 249 verso (page 398); Adv.MS.34.1.10 (i), folio 264 verso (page 400); Adv.MS.34.1.10 (i), folio 276 (page 403) Adv.MS.32.6.2, folio 88 (page 408); Adv.MS.34.1.10 (i), folio 277 verso (page 411).

‘A little yet true rehearsal of severall passages of affairs 1633-55’ [collected by a friend of Dr Alexander’s at Aberdeen’; printed in “Historical notices of St. Anthony’s Monastery, Leith” edited by C Rogers, pages 36-62 (page 420);

Mortifications to St. Geill’s Kirk in Edro, from Adv.MS.32.1.10 (i), folio 189. (Page 428.)

‘Redditus altaris Sanctae Crucis … in Ecclesia B. Aegidii …’ (Adv.MS.32.1.10 (i), folio 198 verso). (Page 430.)

‘Coenobium Beatae Mariae de Newbotle…’ (Adv.MS.32.1.10 (i), folio 136 verso). (Page 431.)

‘Redditus altaris Sancti Nicolai’ (in St Giles’; Adv.MS.32.1.10 (i), folio 173). (Page 431.)

‘Redditus altaris Sancti Niniani (in St Giles’; Adv.MS.32.1.10 (i), folio 174). (Page 432.)

‘Charta Roti Ducis Albaniae facta Joanni Steuart comiti Buchaniae et Elisabethae suae sponsae [de terries de Tuliculture, 5 Nov] 1413 (printed in ‘The register of the Great Seal of Scotland’, i, number 949). (Page 432.)

‘Charta Jacobi sexti facta collegio [regali] de Aberdene 1617’ (not in ‘The register of the Great Seal of Scotland’, but cf. ‘Acts of the Parliament of Scotland’, iv, 576. (Page 433.)