GEODÆSIA Improved. 185

Note 1 ft. That io Chains long, and r broad, that is , iOsquare Chains, make one Iquare Acre; therefore, if any Numberof square Chains be given to be turned into Acres, divide themby 10, and the Quotient will be the Number of Acres containedin somanv Chains: But this Division is abbreviated by cutting orpointing off the last Figure ; for Instance, if 4740 iquare Chainswere given to be turned into Acres, by cutting off the last Fi-gure, thus, 474I0. there remains 474 (to the Left hand) being somany Acres, which is equally the fame as if you had divided 4740,by 10. But if Chains nd Links were given to be reduced toAcres, Roods, and Perches, then cut or point off three Figures,viz. tw > for rhe Links, and one for the Chains; what remainsto the Left-hand will be Acres; and to know the Value of thedecimal Figures, cut or pointed off, proceed as in the following

Example,

In 1967 square Chains, and 7b square Links, how manyAcres, Roods, and Perches ?

Acres — 196I778

4

Roods — zlilL40

Perches — 4.480

Answer, 196 Acres, 3 Roods, 4 Perches, and nearly a Half.

On the contrary, if to any Number of Acres given, you adda Cypher, they will become square Chains, the same as if youhad multiplied the Acres by io, (since 10 square Chains are oneAcre :) And if you would turn square Chains into square Links,add four Cyphers to the Right-hand thereof, thus, 1 squareChain will be 10000 square Links, so will 76 square Chains, be760000 square Links, the fame as if you had multipled 76 byIOOOO, the Number of square Links contained in 1 square Chain.So that in casting up the Content of a Piece of Land whose

A a 2 Dimension*