Wea. Tues. April 6, 1909 Ther. [18cD2352] Torn away a large quantity of the Lingulip's, Those dol. Lingulels think to be at least 150' thick. The fine sand from near top of the area. The entire dol. is once a fine sandy, with banks decidedly sandy, and torn grous of a cream get up to 16' thick, then is gray E. and if into the area. The sand is powerful and some appears to be wind blown. Those dol. must have formed from a shore. Later on it was seen that the change of dip is direct after me. According to Lingulep's is in the lower part of the 150', say 100' beneath the trip which is seen here about 100'. Eastern limit depth 150-200' Southern limit adjacent from Stone, 30'