Solution, On page 192 in column headed D on left side,
follow down the column until the figure 35 is reached, in the
next column headed M on the same line is o, under this
is 15 and under 15 is 30 which is the angle required, that is,
35^ 3(f , On this line at the right under column headed
cosines (at top) will be found the decimal ,81^12 which is the
cosine of angle 35^ 3(y ,

Note. For angles between 0** and 45® the names of the functions
are found at the top of the page and the angles at the left; for all
angles between 45° and 90° the names of the functions are found
at the bottom of the page and the angles at the right.
