A very dull red tint may be obtained by using crushed red granite instead of limestone. The objection is that each particle of granite has a smooth surface, and the tar does not adhere satisfactorily. The cost will be from Is. lOd. to 2s. 3d. per superficial yard. Another method is to dye the limestone with red oxide of iron ground very fine. The ordinary method of laying may be adopted, and the cost will be from Is. 6d. to 2s. per square yard.