18Graticulation of Earth’s surface and constitution of blocks

#### 18 Graticulation of Earth’s surface and constitution of blocks 18 Graticulation of Earth’s surface and constitution of blocks > > (1) For the purposes of this Act, the surface of the Earth shall be deemed to be divided— > > > > > (a) by the meridian of Greenwich and by meridians that are at a distance from that meridian of 5 minutes, or a multiple of 5 minutes, of longitude, and > > > > > (b) by the equator and by parallels of latitude that are at a distance from the equator of 5 minutes, or a multiple of 5 minutes, of latitude, > > > > into sections, each of which is bounded— > > > > > (c) by portions of 2 of those meridians that are at a distance from each other of 5 minutes of longitude, and > > > > > (d) by portions of 2 of those parallels of latitude that are at a distance from each other of 5 minutes of latitude. > > > (2) For the purposes of this Act— > > > > > (a) a graticular section that is wholly within the adjacent area constitutes a block, and > > > > > (b) if a part only of a graticular section is, or parts only of a graticular section are, within the adjacent area, the area of that part, or of those parts, constitutes a block. > > > (3) In this Act— > > > > > (a) a reference to a block that is constituted by a graticular section includes a reference to a block that is constituted by the area of a part only, or by the areas of parts only, of a graticular section, and > > > > > (b) a reference to a graticular section that constitutes a block includes a reference to a graticular section part only of which constitutes, or parts only of which constitute, a block.