MEA 



MEG 



Rome staiolo . 4.212 



cannadei mericanti (8 palms) 6.5365 



braccio dei mercanti(4palms)2.7876 



braccio di tessitor di tela 2.0868 



braccio di architettura . 2.561 



Russian archine 2.3625 



ai*scliin 2.3333 



verschock, ^ g arschin .1458 



Stockholm foot 1.073 



Turin foot 1.676 



ras 1.958 



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 

 measure in Austria, contains 1600 square 

 fathoms : " 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 de- 

 finition is somewhat more agreeable to 

 practice than that of Euclid, who defines 

 measure, a quantity which, being repeat- 

 ed any number of times, becomes equal to 

 another. This latter definition answers 

 only to the idea of an arithmetical mea- 

 sure, or quota-part. 



MEASURE of an angle, is an arch de- 

 scribed from the vertex in any place be- 

 tween its leg's. Hence angles are distin- 

 guished by the ratio of the arches, de- 

 scribed from the vertex between the legs 

 to the peripheries. Angles then are dis- 

 tinguished by those arches; and the arch- 

 es are distinguished 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 Jigure, or plane sur- 

 face, 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, divid- 

 ed into ten square feet, and the square 

 feet into ten square digits : hence square 

 measures. 



MEASURE of a line, any right line taken 



at pleasure, and considered as unity. 

 The modern geometricians use a decem- 

 peda, or perch, divided into ten equal 

 parts, called feet; the feet they subdivide 

 into ten digits, and the digit into ten 

 lines, &c. 



MEASURE of the mass, or quantity ofmdt~ 

 ter, in mechanics, is its weight ; it being- 

 apparent that all the matter which co- 

 heres and move with a body, gravitates 

 with it, and it being found by experiment 

 that the gravities of homogeneal bo- 

 dies are in proportion to their bulks, 

 hence, while the mass continues the 

 same, the weight will be the same, what- 

 ever 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 number, in arithmetic, 

 sucli a number as divides another without 

 leaving 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 

 determinate length. In geometry, it is a 

 cubic perch, divided into cubic feet, di- 

 gits, &c. : hence cubic measures, or mea- 

 sures of capacity. 



MEASURE of -velocity, in mechanics, 

 the space passed over by a moving body 

 in a given time. To measure a velocity, 

 therefore, 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 for horses, is the hand, which, 

 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 1 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 du- 

 plicature of the cube and quadrature oi 

 the circle, \\ contradistinction to that 

 which is done in an accurate and geome- 

 trical manner. 



MECHANICAL curve, is a curve, accord- 

 ing to Des Cartes, which cannot be defin 



