TABLE XL. 



SHOWS THE NUMBER OF SQUARE FEET, SQUARE YARDS, AND ROODS OF 

 36 SQUARE YARDS, THAT ARE EQUIVALENT TO ONE ANOTHER, UP TO 

 324UO SQUARE FEET, 36l)0 SQUARE YARDS, AND 100 ROODS. 



THOUGH the measurement of slater, thatclier, or mason work is 

 made in square feet or square yards, the price of the work is fre- 

 quently calculated at a certain price per rood of 36 square yards. 

 The superficial content of any piece of work having been calculated 

 in square feet or square yards by Table XXXIX., or otherwise, 

 this Table will show the number of roods therein contained. 



EXAMPLES. 



1. How many roods are there in 3564 square feet? 



Look in the feet column for 3564, and in a line with it under 

 roods, stands 11 roods, the answer. 



2. How many roods are there in 864 square yards? 



Look in the yard column for 864, and opposite thereto, under 

 roods, stands 24 roods, the answer. 



3. How many square feet are there in 15 roods, 16 square 

 yards ? 



Find 15 roods in the Table, and in a line 



with it, to the left, under feet, stands 4860 

 And opposite 16 yards in the Table, 



under feet, stands . . .144 



5004 feet, the answer. 



4. The superficial content of a wall round a gentleman's 

 garden, 7 feet high, and 1214 feet long, is found to be 8498 square 

 feet, required its content in roods and yards ? 



Find in the Table the next lower number 



of feet to ..... 8498 

 Which is ...... 8424 = 26 roods, 



Leaving a remainder of ... 74 



The next lower number of feet to 74 is 72 = 8 yards, 



And leaving a remainder of 2 feet, 



or showing the content of the wall to be 26 roods, 8 square yards, 

 and 2 square feet, 



