Arabic numeral journals

The group of journals numbered with Arabic numerals were written by Pedro Flores in 1888–1891 and 1903/1906 and, like the Roman numeral series, cannot be grouped under one title as they provide information on very diverse archaeological sites.

The contents of these journals focus on Neolithic and Chalcolithic sites and were the cornerstone of the lists that Siret drew up for his "Book of Graves", a work that was never published but served as the basis of a book later released by the Leisner husband-and-wife team, Die megalithgräber der Iberischen Halbinsel: Der Süden (Berlin, 1943).

The contents of the journals are indicated on the covers, either by a note stuck to the surface or by text written directly on the binding.