TABLE XLIL 



SHOWS THE NUMBER OF FLOORING TILES AND BRICKS REQUIRED TO 

 LAY ANY NUMBER OF SQUARE YARDS, FROM J YARD TO 200 YARDS, 

 WITH TILES OF 6 INCHES, 8 INCHES, 9 INCHES, AND 1 FOOT SQUARE ; 

 AND WITH BRICKS 9 INCHES LONG, 4j INCHES BROAD, AND 3 INCHES 

 THICK, ON BED, AND ON EDGE. 



THE Table is divided into 7 columns ; in the first column, on 

 the left hand, is the content of the floor or measurement in square 

 yards ; in the other columns, opposite the yards, under the different 

 sizes, is the number of tiles or bricks required for any given 

 number of square yards, of all the various sizes. 



When the number of yards sought is not in the Table, add 

 together the contents of two numbers whose sum is equal to tho 

 number sought; thus, for 38 take 19 twice ; for 59 take 29 and 

 30, Ac. 



In the column of tiles at 8 inches square, 20 J is the correct 

 number for 1 yard ; but where any fraction occurs in the calcula- 

 tion, it is reckoned 1 in the table. 



EXAMPLES. 



1. The measurement of a floor is 72 square yards, how m?.ny 

 tiles of 6 inches square will be required to lay it ? 



As 72 yards is not in the Table, we may take the half Tiles. 



of 72, or 36 twice; thus opposite 36 yards stands 1296 



Which multiplied by 2 



Gives the number of tiles required = 2592 



2. A court yard measures 528 square yards, how many bricks 

 on edge will be required to lay it ? 



If we add a cypher to the content for 50 yards = 2400, we get 



the content of 500 yards = 24000 

 And opposite 28 yards stands 1344 



Number of bricks required . . 25344 



