THU MkuFOBD DAILY 1VRIBUNE, MEDFORD, OREGON'. FRIDAY, JUNE 18, 190& HETRAINS ARE SOMETIMES LATE WE: NEVER ARE I r WE HAVE THE MATERIAL and the TEAMS to GET it THERE-LEAVE IT TO US! Ml 9 T Get Home-Grown Trees c If you want to safeguard your orchard. Get tliem from us if you want to save money. Rogue River Valley Nurseries C. F. COOK Proi'iktor. DRAWS FOOD . TROM THE AIR Interesting Lecture Given by Chemist Pointing Out New Methods in Feeding Plants. P. C. Hansen. Torn Moffa We inula- iiny kind and style of , windows. We carry c;lavs of any size on hand. Medford Sash & Door Co. The Daily Tribune Popular Voting Contest Fill in the name of the young woman yon wish to vote for ami the district in whieh she lives bring or mail to Manager Contest Department, earc of Daily Tribune, Medford, Oregon. Mi This ('oiijxni Cotuits as One Vote for District, No.. (This Coupon is not good after June 2-1.) Cut this out and vote for favorite. THE SAVOY Tonight and Thursday One Lingering Long Laugh Note in the Shoe One Busy 1 lour The Bondsman's Fate Cured by Gymnastics ONE DIME. The Medford Pharmacy The Store with the Yellow Front What nmy lie called tho "piece de resistance" of the Inlcnintiomil Con gress on Applied Chemistry nppcurcd when Professor Henitlisen. director of the Itadcu Aniline mill Soda Kac tory, and one of the greatest aulhori ties on aniline dyes, nave a demon stration of a new method invented in 1!)0." by Professor Olio Schronherr for ihe manufacture of air saltpetre, the manure of (he future for our food crops. The lecture was announced for mid-day but Ihe large demonstration lliealre of the Central Technical Col lege was so crowded with delegates long before thai time that Professor Armstrong, of Ihe Central Technical College, who was chairman, n-ked I'rofessor licrnlhscn to begin bis' lec lurc at 1 1 :.". Importance of Nitrates Professor P.crnlbsen went to the heart of bis subject at once. Of all Ihe things which agriculturists sup ply to the ground to stimulate Ihe jrowrii of crops what are called ni trates are the most important. When nitrogen is onimitted the yield of oats falls )H per cent. The world's store of snhpetre, it has been estimated, at the present rate of consumption can not last longer Ihau from twenty-one lo forty-two years. Sir William Crookes in 1S1KI said lhat Ihe extrac tion of n i t ! !'!! from Ihe uir "is one of the greatest discoveries awaiting the ingenuity of chemists." It was this discovery lhat I'rofessor ftern thseu was describing. Pour-fifths of the air we brealhe is composed of nitrogen, but Ihe problem is to make il combine with oxygen to fonn what is called nitric and nitrous oxides. This is brought about by Ihe agency of great temper atures. I'rofessor Hernthsen turned to his apparatus, which two Oernian mechanics and an engineer had erect ed. It consisted of a long narrow tube, with n copper spiral running up to it. At the sides similar tubes carried running waler lo cool the upper i- neeiion or the spiral. Krom the top f the lube ran an iron tube with a stopcock, to cany away Ihe uilroiren oxides. A current is sent through a glas stiibc. and Hi,- compiv-scd air which is sent in at Ihe same time runic- ihe Hume up ihrouirh the pnai iu in,. ,,;i,cr (., r ,i, . , kes Ihe iiiimccii and cooled lo an assistant. The current was switched on, another assistant made a connection at the bottom of the tube and iu a few seconds a brilliant bluish flame was mounting up the 'lass lube. A I'cJw seconds Inter the delegates saw the familiar brown yellowish color of nitrous o.vide gas appearing in the globes. The appeur ance was the signal for prolonged applause. The current employed for demon stration was at a pressure of oOlifl volts, and nearly (i h.p. of electrical energy was used. The gas obtained is mixed with limestone, when cal cium nitrate or "air saltpetre," is formed. A slightly different method gives calcium nil rale, which, being richer in nitrogen, may, said the pro fessor, become Ihe artificial manure of the future. I'rofessor Hernthsen hopes Unit within a few years the annual out put, of air saltpetre will reach 100. 000 tons. The second team of Talent beat the tv,.,.,!,,!,,.,.!. : ;..iA.ii: on the commons Sunday. The score stood 37 to 17. The Wnodehucks blamed iheir defeat lo Ihe Talent rooters, and as Talent had very few the excuse won't stand. HEADQUARTERS FOR Harness Saddles Whips Robes Blankets ALL KINDS OF CUSTOM WORK. J. C. Smith East Main, Next Rex Grocery C '4 m n nran lu if mm J lalLIu u appli Tbe tlinic oxygen combine, and t,j, down and curried uwuv. Artificial Manure of the Future. PLAN YOUR VACATION NOW at our expense A CHOICEOFFOUP FREE TRIPS or atti rr during alaska- IS OFFERED' YOU YUKON EXPOSITION YELLOWSTONE NATIONAL PARK Y03M1TE VALLEY LAKE TAHOE All Your Expenses Paid If you have a Friend in the East who wants to visit Wit Pacific Coast we can arrange it This is your Opportunity FOR COMPLETE INFORMATION ADDRESS Sunset Traveling Club ROOM 16, FLOOD BUILDING, SAN FRANCISCO, CALIFORNIA Bud: "Si Askib: " I w (re than on Bud: "B i it's so go Folger's icjl it abs II M reSt"' ' j Professor P.cnithsen made a si;