Annual report of the Regents . sis of it made by Dr H. C.^owen on a sample collected some years ago. Silica Alumina 15 . 17 Ferrous oxid , Lime .59 Magnesia .11 :Soda 81 Potash 127 Phosphoric acid .07 Moisture .12 Water (combined) Glencove. Carpenter Bros, have a bed of stoneware clay, fire-sand and kaolin on the east side of Hempstead harbor. Theclay is of a white and pink color, the layers being 4 inches to 1foot thick, interstratified with layers of quartz pebbles. ]N^earer theshore this dips under a bed of the clay free from pebbles. Asso-ciated with the clay is a deposit o
Annual report of the Regents . sis of it made by Dr H. C.^owen on a sample collected some years ago. Silica Alumina 15 . 17 Ferrous oxid , Lime .59 Magnesia .11 :Soda 81 Potash 127 Phosphoric acid .07 Moisture .12 Water (combined) Glencove. Carpenter Bros, have a bed of stoneware clay, fire-sand and kaolin on the east side of Hempstead harbor. Theclay is of a white and pink color, the layers being 4 inches to 1foot thick, interstratified with layers of quartz pebbles. ]N^earer theshore this dips under a bed of the clay free from pebbles. Asso-ciated with the clay is a deposit of kaolin and fire sand. The clayburns a cream color. The quartz pebbles, which contain smallcracks, crumble easily and seem to have been subjected to the actionof some alkaline ^ When ground they can be used for the£nest grades of pottery and stoneware. The fire sand and kaolinare screened and sold according to J. H. Merrill. Geology of Long Island Ana. N. Y. acud. sci. 1^84. 1—1 00 0)OSj aft a;oa o CO Oj. CLAYS OF N^W YOEK 819 Tliis clay is used chiefly for the manufacture of stoneware, beingshipped to various cities in Connecticut and ]^ew York states. Itis also used by Perkins & Pit of Stamford, Ct., for the manu-facture of stove linings. In the latter case about 15^ of it is mixedwith New Jersey clay. Under an ordinary fire this clay burns to alight color, but with a hard fire it is said to blacken. The fire sandfound associated with this clay bears a most excellent reputation asregards its refractory qualities. Giving to litigation the clay deposit of Carpenter Bros, has beeninactive for several years, but work on it will be resumed again thissummer. An analysis of the material is given in the table ofanalyses below. In the spring of 1898 a new deposit was opened on the northshore of Mosquito inlet almost directly opposite Carpenters is said that this deposit is fully 30 feet deep. It is on the propertyof Mrs Helen McKenzie. A sample of this cl
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