32 



NEW YORK STATE MUSEUM 



Value of production of pottery 



WARE 



Stoneware 



Red earthenware 



Porcelain and semiporcelaina . 

 Electric and sanitary supplies 

 Miscellaneous 



1907 



1908 



1909 



$65 271 



28 296 

 1 i-8 1 162 

 869 378b 

 96 788 



$44 7 1 - 2 



31 645 



900 548 



595 247 

 81 089 



$41 298 



32 800 



999 663 



697 573 



55 859 



$2 240 895 



$1 653 241 



$1 827 193 



a Includes china tableware and cream-colored ware. 



b Includes a value of about $200,000 for hardware trimmings used in electric supplies. 



Crude clay- 

 In the foregoing tables relating to clay products no account 

 has been taken of the crude material entering into their manu- 

 facture. There are a few producers in the State who do not 

 utilize the crude clay themselves but ship their output to others 

 for manufacture. The clay most widely exploited for shipment 

 is the slip clay found within the city limits of Albany and 

 known to the trade as "Albany slip." This clay belongs to the 

 terrace 'clays of the Hudson valley. It resembles in appearance 

 the general run of Hudson river brick clays, but in chemical com- 

 position differs in having much larger percentages of the alkalis, 

 soda and potash. These fluxing impurities give to the material 

 a low fusibility and it is therefore in demand as a natural glaze 

 for stoneware, giving to such products a rich, brown glaze. 



In addition to the output of slip clay, refractory and white- 

 burning clays are mined and shipped from Long Island and 

 Staten Island. Kaolin for paper sizing is mined at Shenandoah, 

 Dutchess co., and pottery clays are shipped from various points 

 in the State, shipments in 1909 being made from Warners and 

 Amboy Station, Onondaga co. ; Chili, Monroe co.; and Amenia, 

 Dutchess co. 



The total production for 1909 amounted to 12,174 short tons 

 valued at $11,585, against 4697 tons valued at $11,605 m 1908. 

 The total tonnage seems to have increased while the value re- 

 mained the same, which was no doubt due to the fact that a 

 large proportion of the clay shipped in 1909 was of a lower 

 grade and sold at a lower figure. Seven producers figured in 



