The daily Alaska citizen., 1919-08-28
was Chemical
 Engineer and Used
 Common Soda Water

The man behind the soda fountain turns il on and turns it of Hc does this many times a day, and for many days, and every time he does it few drops of bIcarbouatc of soda tall on the marble counter. ra ing a hole m the stone. This may not mean much io the soda clerk. who probably has more important things to worry abou. and It may not mean much Jo his boss. except just another item to h.. urr in with the l-cent war tax and lhe tncidentals to stick onto the ultimate consumer.
 Down in Edmondson county. ninety miles from Louisville similar plo- cess has been going on for some lme
 several millions of years, more or .,ss. to ue more or less exact an5 ther" were millions and millions ot drops oI soda water falling thru mil lions and millions of crcVices in the earth That was the way tha Nam Aoth Cave one of the greatest natu.
 ,l wonders of the world came into be ing.
 scientists have explained how tu"
 arbon dioXidc is formed by the fer mentation of grass and leaves and other organic matter and how the gas i- dissolved in the water. making the limestone more soluble and makins -oda water which dug this hole in the ground Poets have avoided the sci"n- Gst's hard work by ,Nplarnlng it moro poctically Bo.h tine scientists and the poets have had their lling on Dhu subject and. after all, they haven't got much farther along than the scientific poet who wrote the first chapter of Genesis and said that in thc first place, there was darkness on inc face of the deep, and then there Was ight--and then quit Wory ing about it.
 NATURES WONDER WORK.
 At any rate, Mammoth Cave is there. a big hole in the ground hundreds of miles in eNtcnf, d wonderful world un dergrOund with vaulted avenues thai yawned in dark stiffness ages before the pyramids were built It is still mysterious. fearful and even curious Iy Iaughable in many ways, won. ter world made by Nature in yar}ing moods and auaterity and plaNfuln"#@ Countless wonders alc 10 be found there, and negro guides who have lived and learned in the cave lore 1I' their lives. point .hem out to tourists | every day, and recitr their words about them. And there are countless wonders vet to be found, for altho more than three hundred miles Of Mammoth Cave have been explored and charted many passages have not yet been touched by the foot of man.
 Recent agitation in congress to s"t aside the Mammoth Cave with a laIg tract of surrounding land for nalu- al park has revived interest in Ken tuckys natural wonder More tour | isls have visited the cave this year | than a1 any other season in recent | lta.s. It is recalled that before the | Civil a the cultured American Who made any pretenSiOn as q tourist made | i l poiLt to see the Mammoth Cave. | Presidents and statesmen and Euro pcan monarChs made the journey in 1 overland stage and stopped at the cuaint log inn where there were tW" negro servants for every guest. Jennie Lind awakened the echoes o' l the great cavern with the Wond"llui 1 voice that charmed the soldiers of the | Civil War, and Booth, the great actor, rccited Hamlet's soliloquy in the natural auditorium of yaulted stone. | Audubon, Americas most famous | naturalist, spent six months at the cave studying the bats that annually go there for winter shelter and ne marvelod at the blind crawfsh that inhabit the underground streams and the colorless insects that were to be cmnd there.
 RELICS OF GENERATIONS.
 During the War of 1872 Mammoth Cave was practically the only sourc"
 of saltpeter for the manufacture oi
 gun powder that was burned so eiiec-
 lively down at New Orleans and up at the Great Lakes. Great mounds ol
 the dirt that was leaChcd and the YatS
 in which the chemical was collected
 are to be found there yet Wooden
 pipes, made by boring holes thru tn"
 center of logs. which were th"n