The Orontes is the river for which we have been able to locate the least information. A high priority of any follow-up study must be to acquire more information about the basic hydrology of the Orontes system. The most recent study we have identified, that of Metral, lists important sources in the bibliography in a form that defies all efforts to locate them. In particular, the doctoral thesis of Weulersse and the contribution of Re would be valuable. The information presented here is primarily from Metral and Wolfart.