Sina 2d 1 Ludlowville, N. 4 S. Dyke b Dyke a N. August 24-1904 Sina 2d About 5 mile & the stream from 2d on a sort of amphitheater formed in the cliff by a fault there are three or four small dykes. Dyke A This is the thickest of the dykes at this place being 6" thick after the northern part exposes which goes under the water but going south end up the side of the cliff it becomes thinner until it pinches out entirely at about 12" it really had some horizontally, but appears again 14" farther on as a 2" slab. This however is opposed by B. Dyke b This appears as a very thin dyke at base of cliff about 14" east of dykes A it is about 5" long here being about 3" thick in middle and pinching out to zero each end but 9" farther north and south underneath as the cliff it appears again struck this getting wider until 5" higher and 4" south it breaks off abruptly (with little being in a natural cliff) at which place it is about 1 1/2 thick. Dyke c This dyke cuts across in the over hanging part 7th of A about 1 minute distant from B. It is milk and to so that it seems to have come in as a lateral dyke its lower side breaking it abruptly and extends up the side gently for 30' when it pinches out 9". The thickness on 7th dyke is about 2 1/4. Dyke d This is a very thin dyke (the last east) a north 1/2 minute distance from c. It is about 2" long making pinch out at either end.