Nearly all machinery is ordered from London, as it can be had more quickly and better packed than from the United States. I heard this same statement in various parts of South America. Although manufacturers were beginning to realize that in order to do business successfully in South America, they must first make a study of general conditions, they have not done so in the past, with the natural result that the bulk of Latin-American commerce has been done with the Old World. It is frequently necessary to ship merchandise on mule-back, or in small river-craft a distance of many days after its arrival at a port and before it reaches its destination; it is exposed to varying weather conditions--great heat and heavy rains; the treatment it receives is of necessity very rough. All this means that packing must have been done with great care and in a special manner. The fact that we have not adopted the metric system, and that there have been practically no American banks to discount bills, have been further drawbacks to the establishment of extensive trade relations between the two peoples. Perhaps the most attractive thing of all about the Cauca Valley is its climate. A record of the temperature kept at La Manuelita during a period of ten years shows the greatest uniformity. The difference in the average weekly temperature is only 6° the year around. A belt of tall bamboo entirely surrounds the _hacienda_; the giant stalks of steel-like toughness are armed with long, murderous thorns and form an interlocking mass that is absolutely impenetrable to man. Contrary to our expectations, birds were not plentiful in this land of tangled verdure. A few nighthawks dozed on the ground in the deep shade, and an occasional yellow-headed caracara (_Milvago chimachima_) that, perched on the tip of a swaying stalk, gave vent to its feelings in a succession of shrill, long-drawn screams. Farther away, where clumps of woods grew, birds were more plentiful. There were many red-fronted parrakeets nesting in holes in dead stubs. Red-headed woodpeckers (_Chrysoptilus p. striatigularis_) in numbers hammered on hollow trunks; the strokes are so rapid that the sound resembles the roll of a snare-drum. Pigmy woodpeckers (_Picumnus_) no larger than a good-sized humming-bird, worked industriously on the smaller branches. They are obscurely marked mites of feathered energy, of a dark olive color with a few red dots on top of the blackish head. When the nesting season arrives a tiny cavity is excavated in some partially decayed limb in which two round, white eggs are deposited. These birds are nearly always found in pairs, and when the young leave the nest they accompany the parents, forming small family parties that forage for minute insects among the crevices of rough bark and in decayed wood.