r OO)8' ,t* explain effect elevation. effect is due mainly to the necessity fdrpreater obeat in consequence of *t A the rarefactionof the air; 4 S1- i i 1 ascribes it to a cause, among othersja t the rever -nor ozone, oxyd izing thus requiring less parative state power lessening air from amount of air e presence necessary,. expansion, placing the crippled as it were. organ, all the been disproved by further observations. strated," says Schreiber (op. cit.), " that "It was soon i the altitude at immunity come nced varied with latitude, being the nearer we approach the equator, which could not be the above theory were correct, the law of diminished prnes being everywhere ony, at same." expense of had nothing to do with "An inquiry instituted in government, proved immunity, very high that elev localities Riesengeberge exhibiting large peros N phthisis as soon as the inhabitants turned their attention industrial arts, such as mining manufacture of while on the other diminished when the hand percentage people were engaged in the low in agriou cattle-raising. In other words, that it was the abundantq good air and not any peculiar property of it which eff . good results. are the assertions of writers as to'the b ' plete immunity of the natives of high altitudes the world, in in other m the Jauja mountains of Peru, for intanoe, ;.' firmed by later observers, although all agree that C>a .ie rare;* but so it is in Florida among the white rac; c - in the exceptional cases bad food and bad habits. being, as a general rule, n fact, it is now suof$l demonstrated that it is to be found everywhere. Rim lo4tpn, M. D., Senior Physician to the oedebrf~d ngland, says :t "And here now rapidly dylngo-6i q: a'lk. *- q in -44 *i - r, . vI ' -. . . ,1LiK Ttiu