Though so much is visible in a general way from the map, it is of interest to go into the subject with more particularity and to that end to show it statistically. The several canals traversing each zone were therefore counted, and the area of the zone computed. The manner of canal distribution thus found is given in the following table, in the second column of which stand the areas of the several zones upon the planet, each ten degrees wide, except the one next the snow, and in the third the number of canals found traversing them, reduced to percentages of the 0°-10° zone. A fourth column shows the total length of the canals in each zone, those from 0° to 20° being taken from the 1896 globe, those from 20° to 90° from the 1903. This is in order to annul the effect of the seasons upon the showing of the canals as much as possible. ===============+===============+===============+=============== ZONE | AREA | NO. OF CANALS | ACTUAL LENGTH | | WTD. | ---------------+---------------+---------------+--------------- 0°-10° | 1.00 | 1.00 | 1.00 10°-20° | .97 | .89 | .91 20°-30° | .91 | .93 | .72 30°-40° | .82 | .90 | .71 40°-50° | .71 | .78 | .66 50°-60° | .58 | .64 | .59 60°-70° | .42 | .43 | .42 70°-80° | .26 | .30 | .34 80°-85° | .07 | .12 | .11 ===============+===============+===============+=============== The numbers continue fairly non-committal until we begin to approach the pole, when they commence to increase. Much the same result is got if we take the actual canal-lengths in each zone, as the fourth column shows. The crowding of the canals poleward is marked. The canals, therefore, are phenomena that stand in peculiar relationship to the polar cap. This corroborates the inference about them due to their running out of the edge of the snow. They not only emanate from it, but they do so in numbers surpassing what is elsewhere observable over the disk.