342 



KEPOET — 1889. 



Table II. 



' The distances in this row are the mean of the contour at 30 feet from the ends 

 of the tanks. 



^ Jt having been found that in measuring the heights which are shown on this 

 plan the datum had been taken -0106 feet below L.W., the mean distances in the 

 table have been obtained by interpolation between the mean distances as obtained 

 from the areas of the contours on the plan. 



