3S6 
ME. WAEEEN DE LA EIJE ON THE 
Table III. 
In Table III., column 2, the epoch of the photographs in Greenwich mean time is 
again given as in Table I. ; in column 3 is given a series of numbers obtained by adding 
to the peripheral distances of the sun and moon (as shown in Table I., column 10) the 
number 97 ’3, which expresses in thousandths of an inch the excess of the mean 
measured radius of the moon over the mean measured radius of the sun, namely, 
2002-2-I904-9=:97-3. 
Column 4 contains the numbers in column 3 reduced to seconds of arc, and column 6 
the same numbers corrected by the quantities in column 5, which contains the correc- 
tions necessary on account of the augmentation of the moon’s semidiameter from the 
mean diameter at the middle of the eclipse. The numbers in column 5 are derived by 
interpolation from Mr. Faelet’s calculations. The corrected numbers in column 6 
show the distances of the sun and moon’s centres at the epochs given in column 2. 
Column 7 contains the errors of the wires of the heliograph from the assumed posi- 
tion of 45° for wire I., for the epochs of the several photographs. These numbers have 
been applied to the numbers in columns 8, 9, and 10, in which, respectively, are given 
the corrected angles of position of the cusps, and the line joining the sun and moon’s 
centres. 
Column 12 contains the measures of half the angles between the cusps, taken from 
the sun’s centre, the numbers being half the ditferences between the position-angles 
of each pair of cusps, which are given in columns 8 and 9. The angles in this column 
w^ere employed in the computation of Table IV. 
