one foot thick. Then a third dolomite, gone 10-15 foot thick. This rests upon light hardish Colchester slate; the harder layers due to John then goes of oolite stone. The thickness of these slates is large, at least several hundred feet thick. To 15-20 foot of dolomite goes into the slate conglomerate. For 25 foot or the slate is half dolomite or with dol. boulders. Then the dol. parts become smaller, and up to the next dol. gone beneath the level the thickness is something like 50 feet. Most of it is the mic- acaceous greywacke-like slate with tiny lenses of dolo- mite. Farther up the road near the house (see map) there is another level of the same kind of light blue-grey lime- celled limestone. It's about 60' across and oval in out- line. It maybe 20 feet thick above ground. Has a small ridgey markings. See the four small samples. Mark below the level cannot be seen. Above lies a foot thickness of twisted slate, just as all Colchester. Reick gives these lenses as 100 x 60 feet and 105 x 75 feet; "the large axes lying northwest- ortheast." He could not determine the thickness.