Show t I Professor Kingsbury's Lecture The audience which assem assembled bled Friday evening were very much interested by Professor Kingsbury in his lecture The Chemistry of the Air Following is a short abstract of the address The air may extend all the way from thirty miles to miles above the surface of the earth Were it condensed to a liquid in specific gravity to that of water it would form a layer around the earth about three thirty-three feet in in thickness thick thick- ness Fish in the ocean of water cannot cannot cannot can can- not live out of the water neither can creatures in in the ocean of air live out of the air air Air is essential to the existence existence existence exist exist- ence of life The air mainly consists of oxygen and nitrogen There are small quantities of carbon dioxide watery vapor and argon in the air and minute amounts of ozone per oxide of hydrogen nitrous acid ammonia ammonium ammonium nitrite and ammonium nitrate Dust of various substances and different differ differ- ent organic germs float around in the air Experiments illustrating the properties properties properties pro pro- and uses of the elements of air were made The burning in air in pure oxygen and in liquids was shown by attractive and instructive r rJ ments The great oxidizing power of ozone per of hydrogen and nitric acid was clearly illustrated The lecturer gave experiments with a mixture of oxygen and natural gas etc to show the danger w which ich might arise by allowing allowing allowing allow allow- ing the illuminating gas to escape into rooms Iodide of nitrogen nitrogen- manufactured a few hours before the lecture was exploded by touching it with a feather to illustrate the unstableness unstable unstable- ness of nitrogen compounds A short history of the air from the earliest geological times up to the present was given and the statement was made in regard to the kind of air which will possibly surround the earth in the far distant future that the air may yet be hydrogen This portion of the lecture concerning future air is to be more fully dwelt upon in the lecture on the Chemistry of the Water |