with fine spicular _Arragonite_, and a much rarer substance, which on a chemical examination by Mr. Gregor proved to be a _Sub-carburet of Iron_, has been found in thin plates among the laminæ of the Slate. The Reverend John Rogers has also obtained from this spot small octohedral crystals of the _Yellow Sulphuret of Copper_. From a general review of the phenomena developed in the present excursion, Mr. Professor Sedgwick is led to conclude, that the _great Plateau of the Lizard is not composed of stratified rocks_, for although some obscure indications of an order of super-position appear near _Coverack_ and _Porthalla_, yet he considers them as being too uncertain to be opposed to the clear evidence offered to the south-eastern parts of the coast, where the alternating masses of _Greenstone_ and _Serpentine_ so often appear, like great wedges driven side by side into the escarpment, without any arrangement whatsoever. Mr. Majendie, however, who, be it known, actually _bivouacked_ in this district for a week, was satisfied that the _Greenstone_ and _Serpentine_ did exhibit characters of Stratification.--But we desist--feeling what no doubt our readers have likewise experienced the dry and uninviting nature of Geological details.--Having therefore completed the task we assigned ourselves, and conducted the traveller to the more prominent and interesting objects of WESTERN CORNWALL, we take our leave. The Agriculturist, the Antiquary, the Botanist, the Geologist, and Mineralogist, must, each in his turn, have received ample gratification and instruction from his visit to this interesting and important district of the British Empire, while the Capitalist must have seen from the agriculture, the mineral treasures, the fisheries, and the commerce of the country, how many, and what great opportunities are presented for the advantageous exercise of capital; the Valetudinarian too has, as we sincerely hope, derived his share of benefit from the excursions, and felt the salutary influence of those mild and genial breezes which clothe our fields with perpetual verdure, and impart to our cottagers the enviable blessing of HEALTH and LONG LIFE. FOOTNOTES: