fN.B AZ 
Il. On the French Measures and Weights. 
M. J. Brisson in his Instruction sur les Mesures et Poids 
Nouveaux, &c. Edition monotype, a Paris, An. VIII. 
P. 12, states the value of the métre in the old measures to be 
“<< 36 pouces 11 lignes and 296 thousandth parts of a ligne.”’ 
This measure Siescth will pie .. pieds 3:0784* 
Pouces. Lignes. 
For 36 11-296= 443° 296--12= 36° 9413+ 12= 
as above re . pieds 3-0784% 
In p. 26, he states the value of the métre to be “ ex- 
actement” .. 2.  pieds 3:078444 
Ibid. He states the volte ef the Aéciinetre to be, 
‘Sexactement’” .. ; os lignes 44°3296% 
Lignes. Bikes j Pieds in a decim. 
Now’ 44:3296—12=3°69413-—12=0°30784 x 2 
10-=for 1 métre ae ae .. pieds 3:0784% 
From the above statements it is evident that 
the métre, as deduced from the pied in page 
26, being .. os = 30784 
and as deduced from the lignes i in the same page 
being 6 oe as ois = 3:()78444 
They differ ... 0-0000004 
parts of a pied, and therefore cannot be “ exaectement” alike, 
which they should be ; and this discrepancy is troublesome 
in the verification of calculations. 
In p. 17, he states the centiare or métre quarré 
to as a's hea = pieds quarrés 9-476817. 
Pieds, 
Now if the métre be 3-0784, the métre quarré 
will be ite sé da 9-476820 
197530864 
and if the metre be 3:078444, the métre quarré 
will be ote oe «» 9476817 
461136 
Both which, it is evident, differ from his centiaré or métre 
~ quarré above. 
Ibid. He states the litre ou décimétre cube to = 
pouces cubes ¥ as a i. 50°412416, 
Now if the métre be 3:0784* 
_ the décimétre will be °30784 and +307843=50- 4124378,&c.* 
And if the décimétre be -3078444 *3078444:=50: 4124160008, 
&c. 
A4 But 
