a the section line h h also shows that the fig2 a innermost passage of section h h is located on average just past the 34 throat 34 of that passage the h h section line of fig1 a passing through the newly arrived vane tip on the tip circle in fig1 b and 2b this same passage till here the innermost passage now because of the arrival of that new vane has suddenly become the second innermost passage from the vane tip circle and its cross sections h h through i h and on continue to be trapezoidal for several stations past the 34 throat 34 until at section l l of fig2 b they have again begun to cross radially the great circle u u where maximum width is attained here the part trapezoidal part rectangular cross sections of this passage again begin to appear becoming wholly rectangular at station p p far past that 34 throat 34 on the 34 pressure 34 side namely at the 8th station after the 34 pressure 34 side tip meantime the new innermost passage from the vane tip circle repeats the configuration already discussed under fig1 a and 2a fig3 is a table of end results of computation of vane and side wall design values a lengthy trial and error process and may now be inspected but by now it is redundant from geometrical and.