This country, under a wise government, is capable of sustaining an immense population and giving abundant support to such a railroad; but it is now unexplored, excepting the valleys of the navigable rivers, and is uninhabited save by wild and savage Indians, though these are not numerous. The route up the Magdalena may be expensive by reason of the climate, but not otherwise. The road in the mountain district will necessarily be costly, and also in the sierras, because it must {28} cross the numerous branches of the Amazon, and the precipitous mountains between the valleys, and from the difficulty of obtaining labor and material for construction. Mr. Orton, who crossed from one branch of the Napo to another, says: "We crossed the stream and the intervening ridges, and their name is legion; sometimes we were climbing up an almost vertical ascent, then descending into a deep dark ravine to find a furious river, while on the lowlands the path seemed lost in the dense bamboos, until the Indians opened a passage with their machetes and we crept under the low arcade of foliage." Even if the railroad were built, almost all the produce of the Amazon and montaña country could be carried more cheaply by water to Para than by rail to Cartagena; while goods from England and America would be carried cheaper by steamer to the Isthmus of Panama, and thence to all ports on the Pacific ocean, than by steamer to Cartagena and up the Magdalena across the Andes to the valley of the Amazon, and then a second time across the Andes to the Pacific ocean. The greater part of the business to and from the mines would be by the railroad. At present, as there could not be sufficient business to pay the operating expenses of such a road, it must rely on government subsidies to build and operate it. Those who have given the most consideration to the subject say that the road need not be an expensive one to operate, and in the important element of time it would have a great advantage over the route via Para. As a means of promoting the settlement of the country and developing commerce, which cannot exist without population, the railroad would seem to be a necessity, for navigation has neither opened the country nor brought in emigrants and we may fairly assume that it will not suffice in the future. CONCLUSION. In conclusion I will quote from two writers on tropical America. Buckle says: "Amidst the pomp and splendor of nature, no place is left for man; he is reduced to insignificance by the majesty with which he is surrounded. The forces that oppose are so formidable that he has never been able to make head against them. "The energies of nature have hampered his spirit; nowhere else is the contrast so painful between the grandeur of the external world and {29} the littleness of the internal, and the mind, cowed by this unequal struggle, has been unable to advance.