V = 299800 299880 299850

In the following table, the numbers in the column headed "Distinctness of
Image" are thus translated: 3, good; 2, fair; 1, poor. These numbers do
not, however, show the relative weights of the observations.

The numbers contained in the columns headed "Position of Deflected Image,"
"Position of Slit," and displacement of image in divisions were obtained
as described in the paragraph headed "Micrometer," page 120.

The column headed "B" contains the number of "beats" per second between
the electric Vt₂ fork and the standard Vt₃ as explained in the paragraph
headed "Measurement of the Speed of Rotation." The column headed "Cor."
contains the correction of the rate of the standard fork for the
difference in temperature of experiment and 65° Fahr., for which
temperature the rate was found. The numbers in the column headed "Number
of revolutions per second" were found by applying the corrections in the
two preceding columns to the rate of the standard, as explained in the
same paragraph.

The "radius of measurement" is the distance between the front face of the
revolving mirror and the cross-hair of the micrometer.

The numbers in the column headed "Value of one turn of the screw" were
taken from the table, page 127.

Date.
| Distinctness of image.
| | Temperature, Fahr.
| | | Position of deflected image.