Pausanias Description of Greece 2.18.3

[3]
  A little beyond the Rams—this is the name they give to the tomb of Thyestes—there is on the left a place called Mysia and a sanctuary of Mysian Demeter, so named from a man Mysius who, say the Argives, was one of those who entertained Demeter. Now this sanctuary has no roof, but in it is another temple, built of burnt brick, and wooden images of the Maid, Pluto and Demeter. Farther on is a river called Inachus, and on the other side of it an altar of Helius (the Sun). After this you will come to a gate named after the sanctuary near it. This sanctuary belongs to Eileithyia.

[3] A short distance beyond the Rams [ krioi]—this is the name they give to the tomb of Thyestes—there is on the left a place [ khōrion] called Mysia and a sanctuary [ hieron] of Demeter Mysia, so named after a man Mysios who, say the Argives, was another one of those who acted as a host [ xenos] to Demeter. In any case, this sanctuary has no roof, but inside it is another shrine [ nāos], built of baked brick, in it are wooden-statues of the Maiden [ Korē], Pluto [ Ploutōn], and Demeter. Farther on is the river called Inakhos, and on the other side of it an altar [ bōmos] of Hēlios [the Sun]. After this you will come to a gate [ pulē] named after the sanctuary [ hieron] that is near it. This sanctuary belongs to Eileithuia.