547A includes some very friable gray to grayish olive shale, the edge chipping and in the slings. The shales are very splint- ery, although not extremely so, they contain an abundance of little round or elongate nodules or nut balls indicating a local formation & mud flats. Strike N. 18 deg W dp 40 deg N. 70 deg E. Fossils are scarce. Orbiculoidae occasional Camarotoechia "Mediolopsis platyphyllus" rara Otenodonta (2) Loperdita (perhaps a mud ball?) Hyolithes or a fish spine - 547B. The 20 feet of shales of 5.4.7.B are less friable than those of B and with a judson- mannue of gray rather blue-gray olive color. They agree in the thinness and in general nature as well as in being splintery. The last named character is rather vari- able in places faintly discernable holes in places the splinting develops almost into flat cleavage. Typical network occurs in spots in the shales, the development of vertical replanturing, or of normal beds while dependence appears to depend on the proximity of the trap. Fossils are frequently very scarce in most places throughout the shale except for a few linear seams, which contain great numbers of fossil chiefly little ostracods (Bumella? Beyrichia?) and crink joints with a few tentaculites and camarotoechia. And some contain great numbers of Chonetes donysii but only a single specimen was found in the shale situated this seam after several hours search. A sample of seams contains lamellibrancha chiefly Grammysia ringulata or the fauna is Orbiculoidae occasional Camarotoechia common monocamps (possibly criniferopony) Chonetes donysii rara (abundant in 1 seam) Dalmanella yp. Otenodonta? occaisional Tentaculites cornu/tes serpularius Homalomus yp rare Alcyones or Phacops (typical) occasional Beyrichia 2ar 3 spp. abundant seams Primitia Crinoid segments the fauna are distorted and elongated in the direction of the dip and splintery. A couple of calcareous seams or rather linear causes contomi seams (not collected) very large Astropoterella nearly 2 inches common? Hyponites? one, 2 miles Rynchonella (Camarotoechia?) uncommon 53.3 A In the roadbed just S.W. of the middle of 5.3.5 M., there near Mr Joseph E McAr's farm some thin gray argileaceous shales and thin sandy shale, striking north 75 W and dipping about 40 deg N. 15 deg E. There is quite a thickness of shale exposed, the edge of the shale chipping out for a linear dis- tance of 140 feet along the ground normal to strike complete thickness (sin 60 x 140 ft.) and this is only a small portion of the total amount of shales which appears to be covered. Fossils are very rare and include (5.3.5.2) Chonetes donysii C yp (small, coarser striae) Grammysia unguia (small, smooth var. Crinoid joints.