TABLES FOR THE CONVERSION OF MEASUREMENTS. 



351 



XV III. Tables for the Conversion of Measnrements from one 

 Denominallon to another. By Colonel F. Bailey, R.E. 



Example to show the manner of using the Tables. 



Convert 341-27 Hectares to Acres. 



Decimals 



Whole 

 nuiiibeis. 



1 Hectare is equal to 2-47109 acres ; and so on in all the other Tables. 



To I'ead off the first of these numbers. — Place the point of a 

 pencil at («), i.e., at the point where the line (3) meets the line 

 (iii). This indicates the position of the decimal point. 



To read the second. — Place it at (6) where the line (4) meets the 

 line (ii). 



To read the other numbers, — Place it successively at (c), (d), and 

 (e). With a little practice this can be done very rapidly. The 

 calculation is made by copying figures and simple addition only. 

 Complete accuracy can be assured to any required number of 

 decimal places by extending the Tables, 



The Tables occupy a very small space, and by using them there 

 is less liability to error than if the conversion were effected by 

 multiplication or division. 



