Art. To me there are undoubtedly Lepidoderm- drids. Lepidords stone cases are very common der and very fine large ones occur in the coelurons sandstone, more a len throughout the oystern. First scales of two types are present in almost all livers but are most plentiful near the center of the Horton. I have a Palaeodictyopterid wing from the upper Horton associated with Lepidodandrids, It was found by Dr. J.A.L. Stevenson, London England. Taking the Horton fauna in its entirety it seems to me to be more Pennsylvanian than older than the Windsor. It appears to be the equivalent of the Pottstown series. There is nothing in this fauna to remind of the Windsor. The flora appears older than Pennsylvanian but how it can place the fauna into the higher Mississippian is not clear to me.