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Almanac), as suitable to be observed in connection with the moon at culmination, for determining terrestrial longitude.

An instrument for determining and recording the different phases, as the intensity, velocity, etc., of a muscular contraction.

hips or vessels from one place to another, including, more especially, the method of determining a ship's position, course, distance passed over, etc., on the surface of the globe, by the principles of geometry and astronomy.

An apparatus for determining the amount of nitrogen or some of its compounds in any substance subjected to analysis; an azotometer.

An instrument for determining and registering the duration of more or less complex operations of the mind. Dunglison.

iven to their understandings to range in. Locke. Judging is balancing an account and determining on which side the odds lie. Locke.

An instrument for examining the condition of the ear.

ptions and modes of writing; the art or science of deciphering ancient writings, and determining their origin, period, etc., from external characters; diplomatics.

An instrument for measuring angles for determining elevations, distances, etc.

- Half pay. See under Half. -- Pay day, the day of settlement of accounts. -- Pay dirt (Mining), earth which yields a profit to the miner. [Western U.S.] -- Pay office, a place where payment is made. -- Pay roll, a roll or list of persons entitled to payment, with the amounts due.

Divination by examining the soles of the feet.

To walk through or over; especially, to travel over for the purpose of surveying or examining; to inspect by traversing; specifically, to inspect officially the boundaries of, as of a town or parish, by walking over the whole line.

An instrument for determining the extent and shape of the field of vision.

The act of carefully viewing or examining. [R.] Tatler.

A method of surveying or map making by photography, used also in determining the height and motions of clouds, sea waves, and the like.

An instrument for determining the sensibility of the plates employed in photographic processes to luminous rays.

One who works in a pit, as in mining, in sawing timber, etc.

Descriptive Geom.) One of the planes to which points are referred for the purpose of determining their relative position in space. -- Plane of refraction or reflection (Opt.), the plane in which lie both the incident ray and the refracted or reflected ray.

An instrument for determining and registering the variations in the size or volume of a limb, as the arm or leg, and hence the variations in the amount of blood in the limb. -- Pleth`ys*mo*graph"ic, a.

An instrument for determining the amount of polarization of light, or the proportion of polarized light, in a partially polarized ray.