Rapport du comité naval à la Chambre des représentants, août 1850, en faveur de l'établissement d'une ligne de navires à vapeur par courrier sur la côte ouest de l'Afrique, et de la scence par la Méditerranée à Londres; . du cône était couvert de soriae et l'ascension était difficile, dangereuse et fatigante. Le bord du cratère a enfin été atteint, et la vue nous a complètement indemnisé pour l'effort. À l'intérieur de la vapeur du cratère a été vu émettre de plusieurs trous d'aération, et les détonations de lumière pourraient être heardoccascaseal. Sur les côtés nord, sud et ouest, les wallsdu cratère étaient intacts, mais sur

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Report of the Naval committee to the House of representatives, August, 1850, in favor of the establishment of a line of mail steamships to the western coast of Africa, and thence via the Mediterranean to London; . of the cone was coveredwith scoriae and the ascent was difficult, dangerous, andfatiguing. The rim of the crater was reached at last, and the view afforded fully recompensed us for theexertion. Inside the crater steam was seen issuing fromseveral vent holes, and light detonations could be heardoccasionally. On the north, south and west sides, the wallsof the crater were intact, but on the eastern side the wallhad been broken away, and the lava had flowed out in agreat stream, which reached far down the valley. Thetemperature of one of the vent holes in the crater registered 124 A NATURALIST IN MEXICO. 150° Fahr., and the ground beneath our feet was so hot thatwe could scarcely bear our feet on it for a moment. Thegeneral form of the cone was that of a parallelogram; thebroken side on the east, however, had so destroyed itsoutlines that it was difficult to determine just what hadbeen its original shape, JoruUo erupted in September, 1759, converting what was a fertile plain, covered with. VOLCANO OF JOKULLO. sugar cane, into a black desert, ormalpays. Two small riv-ers were totally absorbed, and disappeared. At the presenttime (1895) Jorullo is showing signs cf great activity, andit is not at all impossible for it to again erupt, as in 1759.Should this happen, the village of La Playa and the numer-ous haciendas scattered about over the valley would be de-stroyed. About noon we left La Playa and retraced our stepsto Patzcuaro, arriving there the second day after leavingLa Playa. The night of the second day of our journey Ishall not soon forget. Our way led over a rough mountainpath, cut up by innumerable barrancas. The scene bymoonlight was grand; the sky was clear, and the moonshone brightly, casting weird shadows here and there. Theforest stood out black aga

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