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treamenti al rubber planter lent south to the Isthmus; an oil-man north to the petroleum deposits near Tuxpam, and an archeologist left for the ruins on the table-land. Some

came to bur; others to sell, and in more settled lands re might have had small interest in them or their calling, but you commercial man in the tropics is often an adventurer at heart and an explorer in practice, and it his reports to huis "house" never reach the pages geographic magazine: we may admit that they not in frequently contain more novel information than many reports that do. Gratefully do I acknowledge my debt to ihese Knights of Trade, whose intimate knowledge of little-known trails and places has been of no small value in soliing problems of transportation and subsistence.


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done so etlectively as in the country lying betireen sea-level and snow-line on It. Orizaba, is in direct support of the claims made for the diverse interests of this truly wonderful region.

Reference to a map of the natural life areas of North Imerica show's the tropic region stretching up tiro narrow arms on the Gulf and l'acific coasts of Mexico which, in places on the higher Sierras. are paralleled by southern extensions of the Canadian Zone of the north. Beteen the tivo lie bands of the Temperte Zone.

Thus, in our journey from the Gulf 10 the summit of the Sierra, ve pass through Tropical, Temperate, and Boreal

the Tierras Caliente, Templada. und Iria, of the native. Our actual journey; in passing from sea-level to snowline, may be a matter of 75 miles, our change of altitude approximately three miles; but if we were to seek the Canadian Zone not on mountain top but on the coast, it would be necessary for us to travel to Maine or Nova Scotia. In other lords, a journey of some 1.500 miles would be required to reach conditions which are here distant but three altitudinal miles.

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UIT BORT.NI, ZONES IN 75 MILES My Own mission in levico las make field studies and collect specimens and accessories for a .Imerican Vuseum Talitat Group), designed 10. illustrate the clicct o altitude on the listribution of life; and the fact that nowhere on the Imerican hemisphere can this be




Paso del Haba, a small sugar plantation It follows, then, that one can actually

on the banks of the Tanesi River distant stand in a tropical jungle, where parrots. 75 miles by water, 35 by land. In additrogons, toucans, and other equatorial deed, our party consisted of George Shi

tion to our host, who proved a host inbirds are calling from the liana-draped

ras, 3d, Louis Agassiz Fuertes, Chapman trees, and look upward to forests of pines Grant, and the writer-a company with and spruce, where crossbills, juncos, pine sufficiently diverse aims to insure a manysiskins, and evening grosbeaks are among pointed contact with nature. the common permanently resident species.

Sacrificing the picturesque to the pracLater, we may ascend to the show's on

tical, we embarked in a launch with a Orizaba to discover at approximately four-horse-power engine, rather than a what altitude the palms of the Tierra tolda - covered canoe of four - paddle Caliente give way to the oaks of the power, and consequently reached our desTierra Templada, to be in turn replaced ination in twelve hours rather than in by the spruces of the Tierra Fria. thirty-six. But what we gained in speed preliminary to this journey let us first see we lost in opportunity for observation. something of the Tropical Zone.* Circumstances led me to make studies

ENCROACIIING CIVILIZATION in this zone near Tampico, and from \n intrusively vulgar, tuff-tuffing mothis town of many dugouts we embarked tor-boat is about the most effective agent at 6.15 on an April morning, bound for for destroving the charm and alarming *As a matter of fact, on this particular trip,

the life of a quiet, remote tropical river the tropics were visited last, but the narrative

that man has devised; but we argued that follow's the more natural order.

opportunities missed on the water might

As a

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I TRET LOADED WITH PIRISITES "In our journey from the Guli to the summit of the Sierra we passed through Temperate, Tropical, and Boreal zones.

To reach conditions which are here distant but three allitudinal miles lle should have to make a journey of some 1,500 miles” (see text, page 536).

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be found on the shore. Furthermore, on thatched cabins and log-hewn canoes, and the lagoons which mark the entrance of the passing glimpses of his way of life on the Tamesi into Panuco, the birds seemed land and water, afforded interesting illusto have become in a measure accustomed trations of the manner in which he meets to the steady, even cough of our kind of his environment. craft, and we passed within gunshot of About 60 miles from Tampico we first numerous coots, many species of ducks, encountered primeval forest, which in and even a small flock of roseate spoon this low, comparatively arid coastal zone bills, a bird with which we hoped to be is restricted to the river banks, and the come more familiar later.

immediate increase in the number and Soon the Tamesi narrowed to 150 or variety of birds seen, stimulated a some200 feet, a width it hield with surprisingly what Hagging faith in the accuracy of little variation throughout the day. For statements concerning the bird life about a time it wound through a grazing coun the plantation whichi, be it confessed, we try, which is overflowed in the rainy sea had received with more or less increduson, where cattle were numerous and

lity. trees almost wanting: then for miles we It was 5.30 when we arrived, with just passed through plantations of bananas enough daylight left to pitch our tents in This moisture-loving plant can be grown the ranch-house clearing on the banks of here only in the narrow strip formerly the river. The brown stream flowed sioccupied by the original forest on the lently by some 20 feet below 11s, with no banks of the river. With the forest had hint of the loss to life and property it had gone most of the wild life;

man him

caused only the preceding season, when self was here sufficiently primitive to be it flooded the country for miles. a part of the fauna, and his picturesque It is commonly believed that to

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