Vincentown July 3 - 1907 Packed material and shipped me small box via express. In reading Clark's notes on the New Jersey Cretaceous one is impressed with the abundance of green sand or fluenite. In fact all the formations may be said to be in the main of this sand. As one goes south the beds become more calcareous. Barrell thinks the Cretaceous shore line may have extended to the Blue Ridge in which case it must have also existed in the Great Valley but not to the west of the Alleghanies. In Connecticut it extended to Hartford. The argument for this greater extension is due to the way the Connecticut cuts across the Crystalline structure. It could not have done this had then not be after Cretaceous over, into which this river had cut its valley and as these were stripped away it began to cut through the ancient rocks below to keep its shortest course to the sea. Left Vincentown at 1.35 and Philadelphia at 4.46 arriving at Pottsville at 6.15. After seeing the hotel concluded to go over to Havre de Grace where we came at 7.30. A good country hotel.