MEA 
Rome canna di architettiira...., 7.325 
staiolo 4.212 
canna dei m^ricanti (8 palms) 6.5.365 
braccio dei raercanti (4 palms) 2.7876 
braccio di tessitor di tela 2.0868 
braccio di architettiira.. 2.561 
Russian arclmie 2.3625 
arschin 2.3333 
verscliock, Jj arschin... .1458 
Stockholm foot 1.073 
Turin foot 1.676 
1.9.58 
trabuco 10.085 
Tyrol foot 1.096 
— ell .*. 2.639 . 
Venice foot 1.137 
braccio of silk 2.108 
ell ■. 2.089 
braccio of cloth 2.250 
Vienna foot 1.036 
ell 2.557 
post mile 24888. 
Warsaw foot 1.169 
The yoke of land, a description of mea- 
sure .in Austria, contains 1600 square fa- 
thoms : “ 1 metz, or bushel, 1.9471 cubic 
feet. 1 eimer =: 40 kannen = 1.792 cubic 
feet, of Vienna ; 1 fass = 10 eimer.” 
In Sweden, a kanne contains 106 cubic 
Swedish inches. 
Measure, in geometry, denotes any 
quantity assumed as one, or unity, to which 
the ratio of other homogeneous or similar 
quantities is expressed. This definition is 
somewhat more agreeable to practice than 
that of Euclid, who defines measure, a quan- 
tity which being repeated any number of 
times becomes equal to another. This lat- 
ter definition answers only to the idea of an 
arithmetical measure, or quota-part. 
Measure of an angle, is an arch de- 
scribed from the vertex in any place be- 
tween its legs. Hence angles are distin- 
guished by the ratio of the arches, described 
from the vertex between tiie legs to the pe- 
ripheries.- Angles then are distinguished 
by those arches ; and the arches are distin- 
guished by their ratio to the periphery : thus 
an angle is said to be of so many degrees 
as there are in the said.arch. See Angle. 
Measure of a figure, or plane surface, is 
a square whose side is one inch, foot, yard, 
or some other determinate length. Among 
geometricians, it is usually a rod called a 
square rod, divided into ten square feet, 
and the square feet into ten square digits ; 
hence square measures. 
Measure of a line, any right line taken 
pleasurej and considered as unity. The 
MEC 
modern geometricians use a deceropeda, or 
perch, divided into ten equal parts, called 
feet ; the feet they subdivide into ten di- 
gits, and the digit into ten lines, &c. 
Measure of the mass, or quantity of mat- 
ter, in mechanics, is its weight ; it being ap- 
parent that all the matter which coheres 
and moves with a body, gravitates with jt, 
and it being found by experiment that the 
gravities of homogeneal bodies are in pro- 
portion to their bulks, hence, while the 
mass continues the same, the weight will 
be the same, whatever figure, it put on ; by 
which is meant its absolute weight, for as 
to its specific, that varies as the quantity of 
the surface varies. 
Measure of a numh&r, in arithmetic, 
such a number as divides another without 
leavjng any fraction : thus 9 is a , measure 
of 27. 
Measure of a solid, is a cube whose side 
is one inch, foot, yard, or any other deter- 
minate length. In geometry, it is a cubic 
perch, divided into cubic feet, digits, &c. : 
hence cubic measures, or measures of capa- 
city. 
Measure of velocity, in mechanics, the 
space passed over by a moving body in a 
given time. To measure a velocity there- 
fore, the space must be divided into as 
many equal parts as the time is conceived 
to be divided into ; the quantity of space 
answering to such an article of time is the 
measure of the velocity. 
Measure/oc horses, is the hand, wdiich, 
by statute, contains four inches. 
Measure is also used to signify the ca- 
dence and time observed in poetry, danc- 
ing, and music, to render them regular and 
agreeable. See Metre. 
Measure, in music, the interval or space 
of time which the person who beats time 
takes between the rising and falling of his 
hand, in order to conduct the movement 
sometimes quicker and sometimes slower, 
according to the music or subject that is to 
be sung or played. See Time. 
MECHANICAL, in mathematics, de- 
notes a construction of some problem, by 
the assistance of instruments, as the diipli- 
cature of the cube and quadrature of the 
circle, in contradistinction to that which is 
done in an accurate and geometrical 
manner. 
Mechanical curve, is a curve, accord- 
ing to Des Cartes, which cannot be defined 
by any algebraic equation ; and so stands 
contra-distinguished from algebraic or geo- 
pietrical curves. 
