Page Four LEONARD ELGENSON B Y Spain has been the testing ground for modern weapons of war for two and a half years. The bomber and attack plane have taken the acid test. By means of high flying military air» planes the civilian population of Loy’ alist Spain has been exposed to fre» quent air raids, Bombings have not destroyed the morale of the people but seemed to strengthen and anger them against the opposing forces. No terrific loss of life or great damage to property has resulted thus far, in spite of the fact that Madrid was subject to more air raids in two weeks then London had through the entire world war. The effect of terrorizinu the civilian populations of the large cities has worn oil and the people consider the air raids as just one more unnecessary and unavoidable evil resulting from war. In fact pictures have been pub‘ lished in the newspapers and mag- azines showing residents of Madrid cuusually going about their business while enemy bombers fly over head preparing to drop 500 or 1000 kilo- gram “eggs." Anti-aircraft guns make it neces- sary for the slow flying bombers to keep an altitude of 15000 feet or more. Arguments may be presented pro and con on the efficiency of anti- aircraft fire, the facts stand that the bomber still keeps a good bit of atmo- sphere between the ground and itself. High altitudes are not highly con- ducive to accurate bombing“ because the various air strata may vary in velocity and direction. That is why the civilians do not run for shelter as soon as they see a fleet of enemy bombers overhead. It is not guaran- teed that the observer will stay in the same spot if a bomb lands within a few feet of him. Bombing of troops on the march is a more efficient way to damage the enemy. Since the large bomber is not highly manucvcrable and must keep its distance it is not feared to any great extent. The type of machine that puts fear into the hearts of the ground troops is the dive bomber or attack plane. Flying at low altitudes it comes into sight very quickly. The sudden appearance {rives the man on the ground very little warning or time to take any measure of safety. l The attack plane is a high speed airplane with extreme flexibility of control. Standard equipment includes four 30 or 50 caliber machine guns mounted at a downward angle of forty-five degrees in order to spray ground troops with lead slugs. In the fusilagc or under the wings is locat- ed bomb racks capable of holding four to eight 25 pound demolition bombs. These bombs explode at the surface and spray the landscape with steel for many yards around. This equip- ment is used by the Loyalists against Franco. It is highly effective in sur— prising troop concentrations, causing a frightful slaughter with a resulting demoralization which could easily de- ride a battle. CHEMISTRY” (Continued from page one) used. Test tubes hold 60 milliliters, while centrifuge tubes hold one to three milliliters. Precipitation is ac« complished by filtering and evapora— tion, a long process of sometimes two or three hours. The centrifuge system of micro—analysis takes only two or three minutes at the most. Semi-micro analysis is, at the pres out time, standard in only a few col« leges It was tried out here during last year’s summer session, and ac~ cording to Dr. Van Atta, chemistry instructor in charge of laboratory work, has many advantages over the old method, macro-analysis. It fea- tures the minute apparatus, the small portions of materials, and the general theory of micro-analysis. The work is so planned, however, as to avoid the long, tedious methods of micro—analysis without appreciably sacrificing: accuracy. Introduction of this method is ex— pected to result in considerable money saving for both school and students. The surprising durability of the minute apparatus eliminates much breakage, a hazard which form- ly played havoc with the student pocketbook. The use of small quan- tities of chemicals will, of course, save the school much money. 3 Subway Engineers Award flout-roots For Second lube Work on Chicago’s new subway is progressing rapidly. At present a pit twenty-five feet in diameter is be~ lhp: excavated on State Street south of Chicago Avenue. Locks are being- built for pilot tubes to State street. The second contract, which involves the work on Clybourn avenue, has been let. Out of approximately eleven contracts for the subway eight will be let by January of 1940. Two hun~ dred engineers are employed so far. Some of the most important prob- lems they have to consider are: pro- tection of buildings and crossing of the river at La Salle street. The street cars run through a tube under the river on La Salle Street and it is not definitely known whether the sub- way engineers plan to tunnel under the tube or not. There are surveying parties out continuously running levels before and after tunneling in order to de- termine whether there has been set- tlement of any building. Some of the curves which are necessary in order to get around the larger buildings will have a large radius of curvature in order to enable the trains to main- tain a high speed. Adequate support) for the elevated along Lake streetl must also be provided. Excavation has been proceeding onl schedule and to date no serious ac- cidents have occurred. o ARMOUR TECH NEWS Annual ERES. butcher lsleltl In Beginning with cigars and sound movies and ending with ice cream and sandwiches, the Fire Protection Engineering Society’s annual smok- or will go down in the annals of the society as one of the most success- ful ever held. Under a smoke screen laid by cigars in the hands of the 45 undergraduates, alumni, and pro« fessors present, the first reel of a two reel show was flashed on the south wall of the main lounge in the new student union. The Educational Film Company, in conjunction with the Veneer As- sociation, presented “Forest Treas- urc," a story of the veneer industry. It is one of the few modern indus— tries which must depend upon primi- tive methods for its supply of rare woods, which come from the inlands of Africa, Australia. India, and the Americas. Like the arms of a huge devil fish, this United States indus- try rcaches into all parts of the world, bringing back rare woods, .such as mahogany, sycamore, zebra wood, luee wood, olive wood, satin wood, walnut, and American oak. These "diamonds in the rough" arc barked and treated in a 190" F. steam bath from one to four days. After this bath they are moist and pliable enough to be sliced into vecncr 1/28 of an inch thick. After these slices have been dried, they are trimmed and squared. Skilled work- men then piece these slices together in the many beautiful and intricate . . the blend that can? be copied? . . . the stunt communities of the worldh best cigarette sebaceous Copyright: 1939, hoes-tr 6; Mvrns Tomcco Co. patterns found in furniture and homes today. These veneers are also used as facing; for plywood, giving the effect of solid pieces with the advantages of economy, equal strength in all di- rections, resistance to shock and splitting, counteraction to expansion, and the possibility of manufacturing any size sheet demanded. The art of veneer is by no means a new one. The only existing; pieces of woodwork done by the ancient Egyptians, 3500 years ago, are veneered. Hundreds of years later, Chippendale, I‘Ieppelwhite, and Shera- ton, of England; and Duncan-Phyl'e of America, took advantage of this practice when they made the beauti- ful antique furniture so highly valued today. At present, 90 per“ cent of our furniture is veneered and precious woods are within the budg— ets of everyone. The second reel was on the com- edy side, showing, three shorts of Popeye. Popeye, with the aid of his faithful can of spinach, fought his way out of three extremely precar- ious predicaments in as many min- utes. Following this, Professor Finne» gun presented the Crosby-Fishe- Forster Handbook of Fire Protection to Robert H. Harmon. This “bible” of the fire protection engineer is pre- sented each year by Salamander, honorary fire protection fraternity, to the present sophomore who made the best scholastic record as a fresh— man. Its purpose is to promote good study habits among students enter- ing the department, and results proved that it accomplishes its pur- pose. The work and pleasure of the eve« ning then being- finished, the smoker was adjourned at 10 o’clock. r v xii loll: . shim / gill r2, um Alix NEWS we are upon the eve of a very important Armour Arm func- tion, first 0/ its kind, the All-Archi- tectural Banquet Truly a grandiose id‘ou. (boy, do we hate our- selves). Just An: Banquet. 2.4, .1939. Honor: remomber~O<7cusion: A I l— Dato: Friday, Feb. Time: Sift. Guest of Professor Vmu (107‘ Hello. Resultant: 0nc~of a. good time. The seniors still pounding small houses into miniature . . . . Things are quiet and slow, maybe because we all miss Johauson’s subtle and clean wit (sounds like a post—mortem). Poor Lorry it 1'8 working. Famous last words: “well, I say . . . . ’ (Note: Johannon's gonna. be at the banquet, if he can scrape up a buck, certainly you can!) Cunningham has opened The Gun- ningham Beaux Arts Air Brush School. All Arx are invited to at- tcnd (upon ermuneration of the necessary remuneration). Skubic was around last week look“ ing; for a job, Baker had an idea, they both left the room, 10 minutes later the job-hunter came back alone with a look on his face which meant he’d just given up a ten spot. There's a playboy in our midst; namely, Mr. E. M. Mandel Life-class proved to be very inter— esting; to all, especially the P. B. . She proved to be very friendly and was escorted throughout the nito by the I’. B ..... A most inter- esting evening. at glues millions Boa—Arts. £47 an, . a A. film . r/Z’W/ I.“ f//// , , oa‘q‘o 1 Tuesday, February 2i, I939 W Show General [M otors Movies At Assembly “Color Harmony", a sound motion picture in full color, was one of the films presented at the first general assembly of the semester, in the school auditorium, last Friday afternoon at 10:30. The pictures, which were shown by Mr. Randegger of the Gen- eral Motors Corporation, demonstrat— ed the mechanism of an eye and ex- plained the functions of the cones and rods of the retina, the sensitive por- tion of the eye. These cones contain chemicals which are sensitive to one of the primary colors. When a beam of colored light strik— es the cones, an electric current is set up which flashes a signal to the brain causing the sensation of color. The eye is capable of blending these im- pulses and registering the different color combinations and shades. The application of a pleasing combination of color shades to the modern motor car was then demonstrated. Another picture entitled “Vacuum Control” explained the operation of various devices actuated by differ- ences in air pressures. Soda straws, airplane wings and rubber suction cups were shown as examples of this phenomenon. The development of a new development in gear shifting was then shown. With no radical changes in the transmission, a system of lev- ers operated by a lever on the steer- ing wheel post replaces the conven- tional controls. However, 80 per cent of the shifting effort is furnished by l a vacuum plunger operating from the l intake manifold. You'll em’oy these three stars in "WlNlilS Kill: ll'l'IE NAVY” A Cosmopolitan production re- leased by Warner Bros. coming soon to your local theatre. . . .. and millions of people before and alter the show are getting more pleasure from the happy combination of mild ripe American and Turkish tobaceos found in Chesterfield. it is the exact way these tobaccos are com» dined together that makes Chesterfields milder and gives them a more pleasing taste and aroma. This exact combination is found in no other cigarette. thnyow try them you will snow why Silesia?» field's give millions of men and worsen azure smelting pleasure . . ., wiry THEY Sflt’l‘lSE‘Y