The science of herauldry, treated as a part of the civil law, and law of nations: : wherein reasons are given for its principles, and etymologies for its harder terms..
Mackenzie, George,1636-1691.
Mackenzie, George,Sir,1636-1691.Observations upon the laws and customs of nations.
Edinburgh, : printed by the heir of Andrew Anderson ... ,
anno Domini, 1680.
Additional engraved title page.
The cited article by Ferguson shows that The science of herauldry and Observations upon the laws and customs of nations (Aldis 2204, Wing M186) are one book.
The last two numbered pages are misnumbered '99' and '98' in that order.
ESTC
Aldis, H.G.  Scotland,
Wing (2nd ed.)
Ferguson, F.S. 'Sir George Mackenzie' Edinburgh Bibliographical Society Transactions, 1 (1935-38): 1-60
Heraldry