89 3 
USEFUL ARITHMETICAL TABLES 
LAND, SQUARE, OR SUPERFICIAL MEASURE. 
144 Square inches (12 xia inches) = 1 Square foot 
9 Square feet (3 x 3 feet) ... ... т Square yard 
* gol Square yards (54 x 54 yards) ... = т Square pole 
40 Poles (rods or perches)... ... .. = І Rood 
4 Roods or 4840 square yards 
(53 x 54 x 407x 4) т" 
TOPPOleS ites car С kb спа 
то Square chains ... = 1 Acre 
640 Acres «. nse ые e vee wee = Square.mile 
= I Acre 
CUBIC OR SOLID MEASURE 
1728 Cubic inches (12 x 12 x 12 inches) make 1 Cub, foot 
27 Cubic feet (3 x 3 x 3). s+. , I Cub. yard 
40 Cubic feet ... ... .. ..'make т Ton of Shipping 
LONG MEASURE 
80 Chains long... .. .. 4. ‘ue (ae I Mile 
320, Rods long ЕТ Mile 
17605Yardsilongzra ЕИ EET Mile 
4840150Пагеғуагаз ее asst ОВ Асге 
по Yards by 69$ yards... ... ss. se sie и I Acre 
A TON WEIGHT 
Of the following will average in cubic feet :— 
Earth... ... ...'I8 to 23 Pit Sand .. .. .. 22 
Clay) et ec MTS River Sand `.. ..' 19 
Chal nese ДО Ар ЧК и sess eset YO 
Thames Ballast ... 20 НН В Я 
Coarse Gravel... ... 19 Night Soil...) ..* 4. 18} 
