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as in green apples, currants, etc. It is levorotatory or dextrorotatory according to the temperature and concentration. An artificial variety is a derivative of succinic acid, but has no action on polarized light, and thus malic acid is a remarkable case of physical isomerism.

of them that shout for mastery. Ex. xxxii. 18. Every man that striveth for the mastery is temperate in all things. 1 Cor. ix. 25. O, but to have gulled him Had been a mastery. B. Jonson.

ry. P. Colquhoun. Maximum thermometer, a thermometer that registers the highest degree of temperature attained in a given time, or since its last adjustment.

remes or excess; moderation; measure. But to speak in a mean, the virtue of prosperity is temperance; the virtue of adversity is fortitude. Bacon. There is a mean in all things. Dryden. The extremes we have mentioned, between which the wellinstracted Christian holds the mean, are correlatives. I. Taylor.…

Moderate; temperate; not excessive. Of his diet measurable was he. Chaucer. -- Meas"ur*a*ble*ness, n. -- Meas"ur*a*bly, adv. Yet do it measurably, as it becometh Christians. Latimer.

To serve as the measure of; as, the thermometer measures changes of temperature.

corded by machinery; produced by mechanography; as, a mechanographic record of changes of temperature; mechanographic prints.

Moderation; temperance. [Obs.] Hooker.

Mild of temper; not easily provoked or orritated; patient under injuries; not vain, or haughty, or resentful; forbearing; submissive. Not the man Moses was very meek. Num. xii. 3.

e ground], they do not plow it again till April. Mortimer. The fervor of early feeling is tempered and mellowed by the ripeness of age. J. C. Shairp.

solid to a liquid state under the influence of heat; as, butter and wax melt at moderate temperatures.

mething) to melt, or the process of becoming melted. Melting point (Chem.), the degree of temperature at which a solid substance melts or fuses; as, the melting point of ice is 0º Centigrade or 32º Fahr., that of urea is 132º Centigrade. -- Melting pot, a vessel in which anything is melted; a crucible.…

wift; active; sprightly; fickle; volatile; changeable; as, a mercurial youth; a mercurial temperament. A mercurial man Who fluttered over all things like a fan. Byron.

stance of which anything is made; material; hence, constitutional disposition; character; temper. Not till God make men of some other metal than earth. Shak.

ble, Meteorological register, a table or register exhibiting the state of the air and its temperature, weight, dryness, moisture, motion, etc.

Substance or quality of temperament; spirit, esp. as regards honor, courage, fortitude, ardor, etc.; disposition; -- usually in a good sense. A certain critical hour which shall... try what mettle his heart is made of. South. Gentlemen of brave mettle. Shak. The winged courser, like a generous horse, Shows most true me…

The quality or state of being mild; as, mildness of temper; the mildness of the winter.

, a thermometer for recording the lowest temperature since its last adjustment.

Modeate; temperate. [Obs.]

Limited in quantity; sparing; temperate; frugal; as, moderate in eating or drinking; a moderate table.