11. DEURIOPUS (ἡ Δευρίοπος) was the name of a tract of country along the Erigon,(1938) which was considered as belonging to Pæonia,(1939) and probably lay to the east of Lyncestis and north of Eordæa.(1940) In Pæonia also was situated the rugged district of PELAGONIA, to the north of Lyncestis,(1941) having on its northern frontiers narrow passes, which protected it from the incursions of the Dardanians.(1942) As to other parts of the extensive territory of PÆONIA (in comparison with which Macedonia was originally very inconsiderable in size), it is only necessary to observe, that, beginning near the source of the Axius, the banks of which river had from early times been occupied by Pæonian tribes, a narrow strip of land extended down to Pella and the coast;(1943) though, according to Herodotus, it could not have actually reached the edge of the sea, as the frontiers of Bottiaïs and Mygdonia at this point came into contact with one another.(1944) Immediately to the north of Lower Macedonia, _i.e._, to the north of Macedonian Pæonia, Bottiaïs, and Mygdonia, but without the confines of these provinces, was situated, as we learn from Thucydides,(1945) the Pæonian city of DOBERUS.(1946) The king of the Odrysians arrived, according to the same writer,(1947) at this place after having come from his dominions, which were bounded by the Strymon, over mount Cercine; in which passage he left the Pæonians to the right, and to the left the Sintes and Mædi (Thracian races, supposed by Gatterer to have penetrated hither when the Siropæonians and others crossed over to Asia).(1948) From which notices I have ventured to set down the mountain, the city, and nations just mentioned, as may be seen in the accompanying map.(1949) _Early history of the kingdom of Macedonia._ 12. The subject of this dissertation made it necessary for us to enter into the above detail as to the several provinces and divisions of Upper and Lower Macedonia. We must now proceed to inquire into the gradual extension of the kingdom of Macedon; an investigation in which we are fortunately assisted by the clear and accurate account of Thucydides, who lived at no great distance from the country which he describes; and whose words I now transcribe as follows (II. 99.):