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xxiii

Errors and Rates of the Transit-Clock .

xxiv to xxvi

Reduction from Apparent to Mean R. A. of Stars

xxvii

Correction to the Tabular Diameter of Venus

xxvii

REDUCTION OF THE OBSERVATIONS OF ZENITH DISTANCE

xxvii

Value of the Screw of the Telescope Declination-Micrometer

xxviii & xxix

Flexure of the Telescope

Errors of the Divisions of the Circle .

xxxi & xxxii

Corrections for Reduction to the Meridian

xxxii & xxxiii

Determination of the Zenith Point

xxxiii

Table of Zenith Points, and of Runs of the Microscopes

xxxiv

Refraction, Parallax, and Semi-diameter

Assumed Longitude of the Observatory

SEPARATE RESULTS FOR MEAN R. A. OF STARS OBSERVED IN 1862

Difference between the Results for R.A. of Polaris as observed at Greenwich

and Oxford

xxxvi

Discordances in the Observations

xxxvi & xxxvii

SEPARATE RESULTS FOR MEAN N.P.D. OF STARS OBSERVED IN 1862 .

xxxvii

Table of the Differences between the Reflexion-Results and Direct-Results for

Stars

xxxvii & xxxviii

Mean Values deduced from the preceding Table

xxxix

Correction to the Assumed Colatitude

xl

CATALOGUE OF CONCLUDED MEAN R.A.'s AND MEAN N.P.D.'s FOR 1862,

JAN. I, OF STARS OBSERVED IN 1862

xli

Observed Magnitudes of the Stars .

Precessions, from what Elements computed .

Corrections applied to N.P.D. .

xli

HORIZONTAL AND VERTICAL DIAMETERS; AND R.A. AND N.P.D. OF THE

Sun, Moon, PLANETS, &c.

xlii

Error of the Tabular Value of the Duration of Transit of the Sun's Diameter xlii

Error of the Tabular Value of the Sun's Vertical Diameter

xlii

Error of the Tabular Value of the Duration of Transit of the Diameter of the

Moon

xlii

Errors of the Tabular Diameters of the Planets

xlii

Computation of Mean Solar Time .

xliii

Observed and Tabular R. A. and N.P.D. of the Sun, Moon, and Planets . xliij

OBSERVATIONS OF R.A. AND N.P.D. OF COMET II OF 1862 ; AND MEASURES

OF DISTANCE AND ANGLE OF PositioN OF THE COMPONENTS OF

DOUBLE STARS, AND OF THE DIAMETERS OF THE PLANETS VENUS,

MARS, AND SATURN

Description of the Heliometer, where found .

xliv

Diameter and Focal Length of its Object-Glass

xliv

Means provided for giring motion to the segments of the Object-Glass .

xliv

Mumination its Scale

xliv

The Telescope-Tube, when dismounted and examined

xly

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INTRODUCTION TO THE METEOROLOGICAL OBSERVATIONS OF 1862 .

The Meteorological Observer, and his duties .

ORDINARY INSTRUMENTS

The Barometer

The Dry and Wet Bulb Thermometers

Max. and Min. Dry and Wet Bulb Thermometers

Situation of the Thermometers

Sky-Radiation and Solar-Radiation Thermometers

Max. and Min. Thermometers on the Tower

Height of the Barometer above the Level of the Sea

The Rain-Gauges

PHOTOGRAPHIC INSTRUMENTS

The Barograph

Description, where found .

Comparison of the Barographic Results, reduced according to the assumed Scale,

with the Readings of the Barometer

The Thermograph and Hygrograph

Determination of their Scales
Comparison of Results of Thermograph and Hygrograph with the Readings of

the Standard Dry and Wet Thermometers

Situation of the Thermograph and Hygrograph

The Anemograph

Description, where found .
Its history previously to 1859
The small Robinson's Anemometer
Accidents to the Anemograph and small Robinson's Anemometer .

The Hyetograph and Electrograph

Daily RESULTS OF METEOROLOGICAL OBSERVATIONS .

Mean Daily Readings of Barometer and Thermometer .

Max. and Min. Temperatures

Record of Rain

Daily Amounts of Horizontal Motion of the Wind .

Directions of the Wind

Daily Amount of Cloud

Characteristics of the Weather

DIURNAL INEQUALITIES OF MEAN MONTHLY METEOROLOGICAL ELEMENTS

Solution of Interpolation Equations .

Explanation of the Tables I to XI .

RESULTS FOR THE DIRECTION AND VELOCITY OF THE WIND ; QUANTITY OF

RAIN, AND DISTRIBUTION UNDER DIFFERENT WINDS ; QUANTITY OF

Ozone, &c. .

Method of deducing the Mean Two - Hlourly Direction and Velocity of the

Wind for each Month .

General Changes of the Wind for the Year

Relations of the Pressure and Temperature of the Air under different Winds .

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