Z440 New Registration, Schedule oi Exams Released by Gilles Printed fllgfichedules To Ede Ready Soon Announcements of the schedule of final examinations and of the registra‘ tion procedures for next semester were made today by W. E. Kelly, the institute registrar. Lists of the exams with their cor- responding date, time, place, and in- structor have been posted on the boards in the main lobby. A copy is reproduced in this issue of the Tech. News to provide ready reference for convenience of students. The last line is particularly important and should be complied with at once if it applies to any student. Plan to Eliminate Confusion Students are required to be on time for the exams, butcarly arrival is not desired. ln previous years there has been crowding: and unnecessary noise in the hall outside of the gym and science hall. This confusion is a dc- cided detriment to those who are in- side and struggling with an import- ant moblcm. For this reason it is requestid that students stay away from exam room: until just before the exam starts. In this way they will give a better chance to those at work. Ample time, ten minutes, is provided between exams for changing,r classes and beginning the final. No advan- tage is obtained by arriving early, therefore all are requested to give their fellow students a break and ar- rivc just on time. Registration procedure will be about the some this year as in previ- ous years. Bulletins from the regi- strar's office have already been mail— ed, advising the payment of bills be- fore the final registration day, Feb- ruary 3. Early payment eliminates the waitingr line outside the cashier's office, and will aid in securing a place in a certain professor’s class before it is filled. Registration of New Students One new feature in the coming registration will be the mailing of class schedules rather than posting thcm on the bulletin board at the stairway in the lobby. This will make it much easier to make out a good schedule and will avoid the crowd- :ng which has been prevalent in the past. The schedule of classes has a program blank printed on the reverse side for convenience in picking class— es. For the benefit of new students who are not familiar with Armour regi- stration, the procedure is as follows: Make out a tentative program. A good practice is to have one or two (Continued on page four) hopes Swine it deededhiohfiiub Jack Russell and his popular Mel. ody Mill orchestra will provide their distinctive rhythm at the annual sophomore dance to be held in the Grand Ballroom of the Medinah Ath- letic Club on Friday, February 10, from 9:30 till 12:30. Swinging lightly through the lyrics of Miss Floe Dare on a delightfully smooth floor, all who attend are guaranteed an enjoyable evening. After a long search for a suitable spot the Grand Ballroom of the Me- dinah was finally selected, not only for its beauty and accessibility, but also because of the many conven- iences offered. The parking facili~ ties are excellent, and are coupled with a convenient cloakroom and a spacious lounge. The bids, which were issued last Tuesday, are black sueue with white insert. Although 400 bids are now in circulation, social chairman Bud Murray feels sure that very few will remain unsold. Every enterprising salesman who sells seven bids will be given a complimentary bid, Bids may be procured from any members of the social committee, which con- sists of Bud Murray, chairman, De Money, W, Grosse, .I. Hartman, and R. Ratzel, or any of the class officers. Armour Institute of Technology, Chicago, Illinois. Shawnee Hears Mus/Eel Clubs The first social affair of 1939 was vastly enjoyed by the men of the Ar- mour Tech Musical Clubs last Sun- day afternoon. Held at the beautiful Shawnee Country Club, located just .north of Wilmette Harbor in the northern suburb of Wilmette, about one hundred future engineers and their dates had an afternoon full of music, dancing, and refreshments. One of the purposes of the affair was to afford the club members of the Shawnee and their guests the oppor- tunity of hearing the Armour Tech glee club and orchestra, directed by Mr. Gordon Erickson. Starting at 3:30 p.m., the concert lasted an hour. Upon its completion :1 reception was held among the club members and the Techawks, following which dancing took place to the music of Don Charleton and his orchestra in the Shawnee Country Club ball- room. Refreshments were also served to the musical club members and their young lady friends. On Thursday evening, February 23, the Musical Clubs will hold their annual Goodman Theatre concert. Tickets for this concert will be placed on sale in the Main Lobby Thurs- day afternoon. All seats are resolved, but it is a known fact that one Good- man Theatre seat is as good as the next from a vision as well as acousti— cal standpoint. Dr. Poultcr to Speak to loumalists at banquet The Armour Tech. News Banquet will be held on February ii at the Student Union beginning at (3:30 p.m. President H. T. llcald, Dean C. A. Tibbals, Professor W. W. Culvert, and Mr. B. ii (ioetz are expected to attend. 1 Dr. Thomas C. Poultcr, Director lof the Research Foundation, is the \ principal speaker. His subject will be on seismology and radio work in the Antarctic. Doctor Poultcr, a very popular speaker, was; second in com- mand and chief scientist for Byrd’s Antarctic expedition of 1933-35. Public announcement of the staff of the Armour Tech News: for the year 1939 will be made. R. I. Jali‘ee, in charge of the Banquet commit- tee, assures us of an excellent eve» ning of entertainment. Dr. heed Arranges instrument Panel in A. {2. Laboratory Junior electricals will have a com- plete line of new equipment in their A.C. lab. work next semester. Since the Christmas holidays, Dr. M. B. Reed and Leonard Holmes, assisted by several students, have been work~ ing in the shop of the main electrical engineering laboratory. In order that students might get the most out of their experiments by working in small groups, six complete sets of apparatus were constructed; in this course each group will have only two members as compared with four or five as was necessary in previous years. Among the pieces made were vari— able air—inductances, capacitors ad- justable from 5 to 100 microfarads and a set of new inductive resistors. Fifteen new Weston meters, especial— ly suitable for the required work were bought. Special tables on which the experiments will be performed are being made. On a backboard circuit breakers, switches, and plugs for instruments will be mounted. The laboratory work will parallel the course in A.C. Theory given by Dr. Reed. Additional equipment has also been built for the radio engineering laboratory by Prof. A. W. Sear. Two precision radio frequency oscillators were made this semester. These os— cillators, which are checked against a 1000 kilocycle frequency standard, have a range from 5 to 30,000 kc. A Western Electric audio frequency oscillator is now being modernized and a new Hays bridge is planned. Duplicate apparatus will be necessary in many cases to take care of the large classes anticipated next year. Pres. hi. "i". Heaid @n Trip to East Coast H. T. Heald, president of Armour Institute, left for the East Thursday to attend two meetings of He will alsr last engineering interest. visit several colleges enroute, and according to his plans, will contact several Armour alumni in the East. It is expected that President Heald will be back by the end of the week. At Washington he will attend a meeting of the Assembly of the American Engineering Council. This organization was established in 1920 to serve as a central agency for the engineering profession in general. It represents more than fifty na- tional, state, and local engineering organizations and is governed by an assembly composed of representa- tives of these bodies. President Heald will then go to New York and attend the cencral meeting of the American Society of Civil Engineers. L. E. Grinter, dean of the graduate division, will alsr represent Armour at this meeting,r On the way back President Heald will stop off at Philadtlphia and visit the University of Pennsylvania and Drexcl Institute of Technology. Dance Class Members lilacs Their @‘i’iicers During the meeting in the West room of the Student Union on Mon- day, January 9. the dance club held elections for the positions of presi- dent and Vice president. The votes of the majority of the members es- tablished James W. Duncan as presi- dent and Charles McAlccr as vice president. The president was chosen from the advanced class, which meets from 4 to 5 o'clock, and the vice president was chosen from the beginner‘s class which meets from 5 to 6 o'clock. This was so arranged that each group may be represented in the executive body of the club. For more effective advancement in dancing procedures, the members were organized into groups. Each group is composed of five six members. These groups will receive personal attention from Dan Stone, the professional instructor. Due to a popular vote the Dance Club meeting- date has been chanced. From now on it will incur. on Wed- nesdays instead of Mondays, is has been done in the past. 1) r Millionth oi Escond Photographs ”taken By "l'wo Research Foundation Technicians Millionth of a second pictures of a bullet in flight were recently tak- en by Dr. F. W. Goodwin and Dr. A 0. Walker of the Research Foundation in a demonstration of the new technique in high speed photon-— raphy, which they have just devel— oped. The pictures, which were published in most of the Chicago's newspapers, showed the successive positions of a bullet as it went through a glass plate, picturing: in de- tail the cracking, piercing and shat- Luring; of the class. Use Miniature Camera The photographic principle of this remarkable accomplishment is not new, for it. has been used to take similar pictures for several years. A camera, in this case one 01‘ the well known “miniature" cameras, is focused on the point at which the bullet will strike the glass and the shutter is opened. When the bullet is fired, a discharge of 38,000 volts through a partially evacuated tube occurs and the resulting flash, in)» nishes the illumination by which the picture of the bullet is made. The new principle is in the manner in which the discharge is brought about. The gun is aimed so that the bullet in flight will pass just between two poles of a spark gap; the gases from the firing of the bullet then dis- charge the spark gap, thus causing the discharge in the partially evaeui oted tube, lumination. strued to be the first application to high—speed photography of the above mechanism causing a bullet to take a photograph of itself with no out- side or independent mechanism for the tripping of a shutter or discharge of a spark for illumination. Alter Span-I: Gap The position of the bullet at time of illumination, and consequently the time when the picture is taken can be determined by altering slightly the relative positions of the spark gap poles. The current for which furnishes the il~ Tour of Eastern States Proposed by Electricals For the purpose of visiting the leading schools and manufacturing plants of the eastern states, a trip has recently been proposed. Definite action on the trip will be carried out during the mid~year vacation. At this time the students will be able to communicate with schools having already made trips similar to the one proposed. Pending further investigation of the advisability of joining" the W.S.E., action by the A.I.E.E. to adopt it as a member organization has been postponed. The next meeting will serve as a business meeting and gen— eral discussion of the significance of the W.S.E. as an affiliated orgam ization. . This innovation is con-' the discharge is furnished by an x-ruy transformer and a bank of twenty‘ four Lcydcn jars. This tmechniquc will be used in the photography of high-speed mechan- isms, in ordrr to reveal faults and flows in opt-ration, For example the apparatus might be adopted for tak- ing pictures of a crank shaft revolv- ing at hiu'h speed. The pictures might reveal distortions due to ccn~ trifug‘al force, or they will, in the case of breakage tests, determine where the first failure occurs. bob Testing Device Helms increase in itemize oil Filtration ducted by the irraduatc students in the water filtration laboratory, thcrc is one on water filtering that has been receiving quite a bit of attcnw tion. The object of the cxperimmt is to increase the quantity of water filtered per unit of time. R. 1. Le- land and .I. H. Fellouris are the two graduate students who are conduct~ ing the experiment. They are work- ing on this subject for their thesis. At the present time almost all large filtration plants located in cities, towns, and large universities use a standard method to purify their water. Chemicals are used first in an attempt to eliminate any harmful organic matter and most of the im- purities that it might contain. This involves precipitation by chemical reaction. The water then passes through large settling tanks and some more of the larger impurities are settled out. The water next passes into a tank containing ap— proximately 30 inches of sand which eliminates the remaining impurities. Leland and Fellouris state that only the top one inch of sand really does the work in cleaning . Their plan is to introduce sub—surface fil- ters so that the capacity of the sys- tem will be increased. These filters consist mainly of perforated filters inserted down into the sand. The water emerges from these filters at a level some distance below the top. In this way a lower level of sand can be filtering water at the same time. The equipment with which they are conducting the experiments was donated by Ira H. Jewel, a maker of sub-surface filters. NOTICE This is [he Ins! issue of (he TECH NEWS for the present so- mestcr. Tim next. issue will do pear mi. Feb. ’7. Tuesday, January I7. I939 jewelry Committee Approves Contracts Samples oi Keys and kings 'll'o Arrive Next Month After eight weeks of hard work, the senior jewelry committee has com- pleted the first part of its work. A contract for the rinp's and keys has been awarded to George ll. Spies, In— corporated, of Chicago. In all, nine companies were considered in the bids which were presented. The commit» tee regarded quality, price and re— liability of the company as the main points of consideration. (‘nmmittcc chairman Abe Zarcm ru- grcts that a. junior was not appointed to the committee so that. the work of the next graduation class committee would he made easier. He feels that a better understanding of the Work would have made the decisions easier. There is a great variation in the pri due to the fact that seven dil'n for nt stones and various types of silver and gold mttimrs are available. Keys also available to seniors who prefer them. Samples will be ready in about a month and the first orders will be taken at that time. The rings to be available are: Gold, ll pennywcight, 10 karat; Onyx or Sardonyx, $12.00; Ruby or Spincllc, $12.75; Garnet, Tourmaline, or Sapphire, $13.75. For ten penny- weight rings, $2.00 will be added to the above prices. Rhodium plating will be used on the silver ring-s, which will cost $5.00 to til s" are £35.75. The cheaper rings are to have [onyx and sardonyx stones, while ,Spincllc and ruby stones will be used gin the $5.75 rings. Engraving of the lmonogram “Al/1‘." or fraternity lreek letters will be (lone for $3.00. Prices for the keys are as follows: Ten karat, onyx or sardonyx, $5.50; 10 karat, spinellc or ruby, $6.25; sterling, onyx, or sardonyx, $4.00; sterling, spinelle, or ruby, $4.75. Additional information regarding the jewelry can be obtained from the jewelry committee. Columbia Yacht Club Site at flraok Dance A formal inter-fraternity dance will be held on the night of Saturday, January 28. This dance which is lim- ited to fraternity men stone is 9:0- ing‘ to be held at the Columbia Yacht Club. This Club, which has just recently been redecorated, is sit- uated at Randolph and the Lake just opposite the Naval Reserve Armory. Decorations and the design of the Club is in the motif of a ship both inside and outside. The dance is the first to be held in the redecorated atmosphere. Sufficient parking space furnished with attendants is assured. Music is going to be furnished by the orchcs~ tra of Pierson Thai, an orchestra that has been featured at another Armour occcasion. Bids are priced at $3.00 each and include the cost of parking. Details for the dance are being handled by a committee of C. De» Mcnt of Phi Pi Phi, R. Dodge of Pi Kappa Phi, and T. Collier of Phi Pi Phi. The dance will be strictly for- mal, and will begin at 9:30. Board of Trustees Hold Initial Meeting in Union For the first time this year mem- bers of the Board of Trustees of A)» mour Institute of Technology held a meeting a week ago Monday in the newly completed Student Union. The members assembled at the Chi- Armour by bus. After a brief din» held. Following the meeting: an in- spection trip of the Institute was made. The trustees were divided into1 groups and conducted through the‘ various school and research labor- atories. following which there was an informal gathering in the Student" Lounge. Vol. XXII. No. M» ii. 5%.. ”lo Establish lirecislon hob More tor Wear liloportmeni Armour Approves Plans To install flange Apparatus Plans for the installation of a U. S. Army gauge checking laboratory at the Institute in collaboration with the Army Ordnance department in Chi- cago, have been approved by the Chief of Ordnance, school officials, and officials of the Research Founda- tion which will have jurisdiction over the project. New York University also main‘ tains a laboratory for the war depart- ment. The government reserves the right to use the equipment at any time, but the Institute will have the privilege of using the equipment. Use-s Precision Instruments Fully equipped, the laboratory will make possible measurements to with» in two millionths of an inch using the Van Keuron Light Wave equipment, used to determine wear on Johan~ nscn precision measurement blocks or ' ances where great precision essential. A measuring- machine with a capacity of from 0 to 4 feet, measures lengths to the one hundred thousandths of an inch. A screw thrrad testing machine, built by the. Bureau of Standards, a profile pro- jector of the same make, and acces- sories make possible the closest de- termination of the characteristics of all types of screw threads. Armour Has Use of Equipment The New York laboratory, after which the new laboratory will be put-- turned, provides 2: Sheffield compar- ator with graduallons to the 25-mil— lionths of an inch and a Hartncss op- tical profile comparator. There is also a wide angle binocular micro- scope and a tool maker’s miCroscope with attachments for determining the characteristic small threads to the ten thousandth of an inch. There are several sets of Hoke, Johannsen and Bureau of Standards precision measuring: blocks and a large assort- ment of vernicrs, inside and outside micrometers, surface plates, straight edges, a super-micrometer with at- tachments and accessories for deter mining the pitch diameter of Acme and {lo-degree screw threads. Sine- bars and fixtures to check angles to the accuracy of a second; still paral- lels of assorted sizes, box parallels, precision level, cylindrical squares, (Continued on, page four) in: Co-ops Winter Dance on Its/3.3 Bids Cost $I.50 The Co~op Club's Winter Dance, to be held on Friday, February 3, 1930, now promises to be the most success- ful aliair ever sponsored by the or— ganizal‘ion. As was announced in last week’s Armour Tech News, AI Trace’s orchestra will furnish the music and the Student Union will provide the setting. Al Trace has been highly praised by the many students who have heard him play. Welldiked also is Trace's featured solmst, Ruby Abbott. Al Trace and his “six silly sym- phonists" are featured regularly at the Hotel Sherman‘s Old Town Room and at the College Inn. On New Year’s Eve the orchestra played for a gay crowd who willingly payed $5.00 per person to hear them welcome the new year. On January 5, Al played f: r a program of the Tribune’s adver- tising department, appearing with many celebrities that included Joan Davis, popular movie comedienne. The orchestra has also appeared on the stage of the Statedake theatre and is heard over the Columbia Broadcast- ing System. To further assure the success of cago Club and were brought out to’ nor the regular January meeting: was . the occasion, elaborate plans are be ing made for the decoration of the auditorium. The committee has been assured that the full facilities of the .Union Building: will be available for the evening. The price is $1.30 per couple. am available at the office of the ~ strar, in the bookstore. Leasc's office in [\Vi‘l’fi ‘ as from Corp (‘lub mcmb‘ KS. and ll