Martinsburg, N.Y. Sep. 4-1916 walked east 2 1/2 miles to East Martinsburg. Here we begin in the Laurentian granite, a fairly common plain and on which rests the Parrelia. It starts in with a coarse sandstone with some pockets of to 1/2 inch veins. Then follow the generalized sections described on Monte page. The thickness is probably 65 ft (Cushing gives it as 70 ft). The Parrelia goes without break into the Lorrville and all is a shallower carboniferous deposit, the water at our time falls off more than 20 feet deep. Where the semi-crackling seems there the riffles are about 1 1/4 from crest to crest. If the Parrelia is started with T. pellucida - the thickness in 450 ft (Cushing put out) The black river returns the Lorrville again in a "welded contact." Saw no Columnaria. There are many fossils in the Leray but all are hard to get and then but future goal. The thickness is about 10 feet. The Trenton begins at once with Triplexia, Para-stethia, Orthus tricarinus, Oinoriths; Peetinella. Then the regular lower, middle and upper Trenton as at Trenton Falls. The crinoidal crystalline Trenton is also here but far less well developed and in totality it is the lower Trenton from 10 to N-2 feet thick. In the lower beds remain Raphisguina deltoides and Stephomana hila