Annual report . ^S Ph G ITS o o o V. <^ Oh 05 P4 2 in £ 2 £ ^ o bjo-o in GEOLOGY OF THE POUGHKEEPSIE QUADRANGLE 51. indicated by apparent fragments of shells seen on polished surfacesand in section. I return these specimens to you for your ex-amination. I notice that one side of the rock specimen exposessomething that suggests a head of Conocephalus or other primitivetrilobite. Figure 17 is a photomicro-graph of a section of this rockand shows what appears to be afragment of a tiny .shell. Themicroscope failed to bring outany structure in the concentricmasses. In addition to the suggest
Annual report . ^S Ph G ITS o o o V. <^ Oh 05 P4 2 in £ 2 £ ^ o bjo-o in GEOLOGY OF THE POUGHKEEPSIE QUADRANGLE 51. indicated by apparent fragments of shells seen on polished surfacesand in section. I return these specimens to you for your ex-amination. I notice that one side of the rock specimen exposessomething that suggests a head of Conocephalus or other primitivetrilobite. Figure 17 is a photomicro-graph of a section of this rockand shows what appears to be afragment of a tiny .shell. Themicroscope failed to bring outany structure in the concentricmasses. In addition to the suggestivemarking referred to by DoctorClarke as possibly representinga trilobite cephalon, the writernoted another strongly suggest-in^ a Hvolithes stone in the floor of Rupperts <iuarry The rock layers in the floor of the quarry are about ten or twelvefeet below the layers yielding L. pinniformis and the wholeare conformable. The Trenton. This horizon, as mentioned above, was reportedby Professor Dwight from the eastern margin of the belt on thefarm of R. J. Kimlin and was recognized by the presence ofSolenopora com pa
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectscience, bookyear1902
