Analysis.

The following is a Table of the Average Composition of the Coal Exhibited from New Zealand from Analyses made in the Colonial Laboratory :—

Each skull is longitudinally bisected, and is so placed that the series of b[unclear: our] forming the base of the skull (basis cranii) is horizontal. The direction of [unclear: the] series of bones is shown by a red wire, which thus represents the cranial [unclear: as] From the fore end of this red wire a blue wire is continued along the bones fo[unclear: rm]ing the axis of the face, and so marks the facial axis. The green wire indi[unclear: cas] the direction of the ethemoidal plane by which the cavity of the brain-case separated from the chamber of the nose; the black wire, of the tentorial p[unclear: lace] or plane of separation between the greater brain or cerebrum and the lesser b[unclear: rane] or cerebellum; the yellow wire, the occipital plane, or plane of the apert[unclear: ion] (occipital foramen), through which the spinal cord becomes continuous with [unclear: the] brain. The outline diagrams represent the position of the brain in the skull the lowest (frog) and highest (man) members of the series, the cranial axis [unclear: bank] made of the same absolute length in both. It will be seen that with the increase relative size of the brain, the facial axis, a c, becomes bent downward upon : cranial axis, a b, the angle cab being, in man, nearly a right angle, instead as in the frog, equal to two right angles. At the same time the ethemoidal [unclear: plane] a d, is rotated forwards, the angle dab, a right angle in the frog, become greater than two right angles in man; and the tentorial and occipital planes [unclear: and] rotated backwards, the angles a g e, a b f, becoming obtuse instead of right angle