NEW JERSEY BRICKMAKING INDUSTRY. 255 



Absorption, 

 Locality. percentage. 



Yorktown, 8.80 



Collingswood, 9-23 



Sayreville, 10.34 



Camden, 1 1 .08 



Maple Shade, 12.76 



Asbury Park, 1301 



Fish House, 13-58 



Kinkora, 13-65 



Hightstown, 13-78 



Buckshutem, 14-02 



Kinkora, i4- 2 9 



The absorption tests are given separately because they include 

 some samples which were not subjected to crushing tests. 



Explanation of table. — The following table gives the crushing 

 and transverse tests made on New Jersey bricks. The first col- 

 umn gives the number of the brick, corresponding to the records 

 kept in the Survey office. Each manufacturer has been informed 

 which number represents his brick, and no firm, names are pub- 

 lished, as some brickmakers preferred not to have this done for 

 business reasons, and their wishes are respected. The second 

 column gives the character of material, and the third column gives 

 the methods of manufacture, although aside from this the bricks 

 are separated into' the stiff-mud, soft-mud, and dry-press groups. 

 In the fourth column the color of the brick is given, and in the 

 fifth the character of the product. In the sixth, seventh, eighth 

 and ninth columns there are data referring to the crushing tests. 

 The sixth column gives the lowest test of those made, the seventh 

 the highest, the eighth the average, and the ninth the number of 

 bricks tested. In the next three columns the transverse tests are 

 shown, the minimum, maximum and average being given, as in 

 the crushing tests. The fourteenth represents the percentage of 

 absorption, and the fifteenth, or last, column indicates the geo- 

 logical formation from which the clay or mixture of clays was 

 obtained. 



