212 TRANSACTIONS OF THE 



CC. Registers, through which the air is admitted into the ice 

 chamber. 



DD. Apertures, through which the cold air passes into the pro- 

 vision chamber. 



EE. Apertures, through which the air passes into the space 

 between the cases of the refrigerator. 



FF. Registers, througli wliich the air passes off. 



I. — By opening registers CC, air is admitted into tlie ice cham- 

 ber A, Avhere it is cooled and purified in the most expeditious 

 manner. 



II. — The air thus cooled and purified passes through apertures 

 DD, (the natural tendency of cold air being downwards,) directly 

 into the provision chamber B, permeating every part, and pre- 

 serving a uniform temperature throughout the entire chamber. 



III. — After the cold air has thus performed its office, it is made 

 to pass through apertures EE, where a slight warmth will cause 

 it to pass up through the space between the cases of the refrige- 

 rator, and out at registers FF, thus serving the further purpose 

 of preventing the warm external air from penetrating through the 

 cases into the provision chamber. [^i bronze medal awarded. 



American Porcelain. 



Union Porcelain Co., 82 John street, New- York; works at Green 

 Point, Long Island. 



This company is the largest Porcelain company in the United 

 States, with a cash capital of $150,000, owning large real estate, 

 and employing some 100 to 150 workmen in making pure Ameri- 

 can china from our own native soil — everything connected with 

 its manufacture is purely American. The porcelain clay, or 

 kaolin is found in New Jersey and Pennsylvania. The feldspar 

 in Delaware and Connecticut, and all the other materials in our 

 immediate neighborhood. 



The articles made by them are every variety and kind of knobs 

 used for doors and drawers, escutcheons, cloak and hat hooks, and 

 all articles used in house trimmings; cups and saucers, bowls, 

 plates, pitchers, of endless variety ; spittoons, plumbers' basins. 



