?42 MINERAL REPOSITORIES. b. The point of the compafs towards which it inclines or dips. 2. Its magnitude. Here we have to confider, A. Its width. B. Its extent; which includes, a. Its length. h. The manner in which it terminates. Fur ther, C. Its ramifications. II. The interior or internal relations of the vein, Thefe are.the following : , I. Its predominating ores and vein-Jlones. Of thefe, A. We mull give a fhort orydognoftic defcrip- tion ; and alfo note B. Their frequency. C. Their local order ; that is, the order of the vein-llones and the ores to each other. D. The variations that occur in particular part, of the vein. / 2. The rarer ores and vein-Jlones that occur in the vein. Of thefe we mutt alfo give A. A Ihort orydognoftic defcription ; and npte B. Their frequency. C. Their local arrangement or order. D. Where •„
