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academy active appear associate August Beauchamp become beds birds C. W. Hargitt cause chair Charles color common contains corresponding creek dike drilled early east elected entire entitled extended fact Family feet field five follows fossils four geological give given glacial Goodrich grains Green Hargitt Hentz Hill hundred important inches increase insect interest Jamesville John July June known Lake lecture less limestone locality lower membership mile Miss nature noted November observations occurs October Onondaga period persons present Philip F plants Pleistocene president probably produced Prof rare REGULAR MEETING Roberts rock sand sandstone saws Schneider Science secretary seen September shales side species specimen stone stream street strike surface Syracuse taken thickness thing trees Tully Valley woods York
Page 101 - President, in the Chair. The minutes of the December meeting were read and approved. The name of Mr CJ Wood was read for the first time.
Page 26 - ... same time the iron acts as a cement to bind the grains of silica together. Slide No. 69. Labrador oil-stone, from Labrador Lake, Courtland County, NY This stone is a fine-grained sandstone, of greenish-gray color. The grains of quartz vary from .08 to .01 mm. in diameter, and many give polarization colors of a high order. The silica is imbedded in a matrix of calcareous earth containing a large percentage of iron, and there are present also flakes of muscovite, sometimes bent between the grains...
Page 64 - Society proceeded to the election of officers, with the following result : PRESIDENT — Dr.
Page 69 - A man's best things lie nearest him, Lie close about his feet ; It is the distant and the dim That we are sick to greet.
Page 130 - Tully limestone in the fissures of the slate (Genesee) are two narrow veins of semi-crystalline rock of a blackish-brown color, becoming olive by alteration. It appears to be a mixture chiefly of serpentine and limestone having the appearance of a Trap rock.
Page 26 - ... iron, and there are present also flakes of muscovite, sometimes bent between the grains of silica. The iron is limonite, unevenly distributed, which binds the particles of the stone together by its branching lines. The aggregation of the iron into these lines represents probably a secondary pro cess; with the exception of this and some doubtful secondary quartz, the stone is an unaltered sediment. Considerable effervescence occurs when treated with dilute hydrochloric acid. The abrasive qualities...
Page 27 - The saw -gang or the gang-saw, as it is also called, consists of a rectangular frame in which strips of iron about one eighth of an inch in thickness and three inches wide are placed edgewise at the desired distances apart, parallel to the long side of the rectangle. This •gang-saw is suspended in a horizontal position over the bed on which the stone to be sawed is placed. The saws are moved back and forth by machinery, operated by horse, water, or •steam-power, and are fed with sand and water.
Page 87 - These are ten in^ number to correspond with the prism angles. Where these cross the annuli, they are raised into projections which appear for the most part to be short, stout and blunt but in some vertical sections of the shell are apparently extended, acute and spiniform.
Page 87 - In two of the casts in which the body whorl and aperture are entirely preserved, this chamber has a length of 45 mm., which is equal to the depth of 6.5 chambers. On the exterior the surface is ornamented by fine concentric or horizontal imbricating or engraved lines, which are bunclted together into low concentric annuli and are crossed vertically by ridges of about the same size.