Show I. I I THE II-IE LAST FRONTIER to A 1 QUICK l TRIP rio 10 Till TIlE IOU POLi I fly Ily DAVID 11 Ni I l' l ke cr Writ I I I It would be startling experience enc ence to be bo able to stand on the I equator and gaze at the north pole 1011 You cant can't do it of course DUt you ou can do what amounts to exactly eX the same thing from front the tho th viewpoint ot of science j Scientific expeditions arc are doing It If it today In iii South America in the thc Andes Ande mountains I Front From l' l the isthmus I of Panama I 1 1 eP to to Cape Horn r stretch the Andes I a continents continent's cOI backbone of ot rugged peaks the highest reaching up II feet Ceet I The mean man temperature upon the th earths earth's surface varies arlea about one degree Fahrenheit for every cry 1000 feet fett you ou ou travel el north or south Thermometers in tho the Andes Ands I change one degree for very every feel you ou KO go up or down town the mountainside Accordingly you can Ian K get pt H all nil the I j temperature effect In feet feel of mountainside that you would got get I in feet teet of level le ground I Th foot of a mountain will stand In a dense c tropical forest Its lis peak wilt will be clothed with eternal snow AH As the tho th mountain la lIS climbed one ono climate zone is met otter after an an- other The tropical zone none extends to 10 a height ht of feet tt From there thereto therelo lo to t u f feel l of altitude i extends a II zone zon which Lax hUA beta been called the sub Xi Next Xit t Is la a temper temperate t nl I et 1 ate cone iono on reaching to lo ft fret fe t I 2000 I and 1 fret foot fretis 11 us is I the hi i ao so Paramo a t zone rono resembles rE the arctic I And above aLon feet Ceel Is la an l I of perpetual ice ce and aDd snow I Not only does the temperature change with the zones but the character of the trees tre and ad plants the type of animals and strangest stran est of all the bird life You You- Youcan can Ian roam the forests of tropical South America Ame for hun hun- hundreds hundreds hundreds of ot miles and land always hear ear earthe the harsh voices of ot the great groat macaws But after aCter a few hours' hours climb I up one of oC the mountains the macaw ma ma- macaw caw Is s seen no more They do not enter the sub sub- subtropical sub sub-i tropical zone Here are arc found sonic some 00 00 OO species found to nowhere I II IO Ier else In South O Anse America Ica c er Title This Is I one of lie trie facts that chat make the Andes so Important to the tho scientist A second important fact la ls lathat that the Andes are recent t affairs as us time goes geologically h lIy South South America existed for tor millions of years para before some gigantic up up- upheaval hoeS hta al of the earth brought the tho Andes Into existence ce This means that the ancestor of ot every ery bird b to O be found 1 in the t I Andes s exists st somewhere e else e in inthe inthe the world I j Scientists hope to trace these I ancestors Jf tors and by noting the j which have come over o I descendants living In the tho zones of the Andes they to find out many of ot the facts concerning the way in which I works Th rh The American Museum of oC Na Na- History has hM five expeditions Ions in South America The work worl of this museum in the Andes An An- Andes Andt's des dt's Is under the general direction three three- lion tion of Di Dr Frank Frnk H H. Chapman who did much south of the pioneer work In the th study of the Andes Andl |