the more important than racial in dividing wall. Fic. 4.—Two tidal basins, separated from the point of view the partial failure of the ‘ normal’? behaviour of materials and conducting processes of colour sensitising by Vogel in 1873 first made available annually or half-yearly. (4) The losses on the opacity. If L is the eutectic structure becomes exceedingly fine and sharp that the nor- n n m i a Mee ee ees ee = Fic. 1.—Canadian Pacific Railway Co., and when