The Educational screen (c1922-c1956])

January, 1936 Page 31 Some Common Causes of Damage to Slides and Films (C'ii)ic/i«/i'(/ frcin page 10) worse, they become very egotistical and like to strut their "stuff" before the eyes of their less fortunate schoolmates. In this respect, girls make better oper- ators than bovs. One of the best operators who has ever come to our notice is a woman. The worst "horned cattle" we have to deal with are ex-theatrical operators. They are usually very egotistical and want to impress others with their extensive knowledge of projection. With this in mind few of them will ever willingly admit a fault, even though the fault has detroyed a $100.00 reel of film. They usually work in haste, pay little heed to the care of their projectors, watch the picture instead of the machine and the pic- ture, and are about what we would expect an un- emjiloyed ex-picture operator to be. The true way to operate a projector (as is the case with most ma- chinery) is by the sound it produces. A variation in the normal sound should call for immediate attention. Lantern slides should be repacked in the manner they are packed when received from the exchange. In regular glass slides this calls for three dividers (corrugated board) at each end and one or two divid- ers between each five slides. It is not necessary to have dividers between each two slides, but there must be plenty of packing at the box ends. Featherweight slides need only be packed at the box ends, the card- board edges of these slides make dividers unnecessary between slides. Slides should be allowed to warm to the room temperature before placing them in the projector, otherwise steam may form between the plate and cover glass and break one, or the other, or both. Small straight cracks seldom show on the screen. Cheating yourself. There are operators who think it is a clever trick to get rid of bad reels by putting them in the take-up box and thus winding the film on them. This is not clever but foolish since a bad reel, as pointed out in our first paragraph is the worst sort of a hazard and if in the take-up box it will do its damage probably unnoticed, only to be caught by the exchange and a damage charge assessed. Good projec- tion rooms (booths) are furnished with several extra good reels on some of which incoming reels are first M-ound before use and the other ones used for take- up purposes. Don't cheat yourself in an attempt to cheat the other fellow. Now that the centralized collections of visual aids are becoming more common schools are beginning to use slides and films in an increasing volume, and it is well for both "experienced" users as well as "inex- perienced" users to consider these possible causes of damage. Excessive damages must be repaired at the expense of the one responsible for the damage, and as films cost from $24.00 to $100.00 a reel and slides from 75c to $1.25 each, no one wants to be responsible for excessive damage. Have Yon Your Copy of ''lOOO and One'' (The Blue Book of Non-Theatrical Films) Whether you use films seldom or often you will find '"1000 and One" indispensable. Published annually for eleven successive years, "1000 and One" is the recognized standard film ref- erence source, known and used the country over by thousands of film users in schools, churches and other organizations in the non-theatrical field. The current edition (144 pages) lists over 4,000 films, 35mm, and 16mm., silent and sound, for edu- cation and entertainment, carefully classified accord- ing to subject, and arranged in 139 numbered subject groups. Full information given on each film—title number of reels, brief summary of contents and source or sources distributing the film. Price only 73c, except to subscribers of Educational Screen who pay a mere 25c for the famous directory. Use the coupon below to order "1000 and One" with or without a subscription to Educational Screen, placing your checkmark in the proper square for our guidance. Educational Screen, 64 East Lake St., Chicago, 111. Send me the 11th edition of "1000 and One." 75c enclosed D Enter my subscription to Educational Screen for 1 yr. $2.00 D 2 yrs. $3.00 D and send me copy of "1000 and One" for 25c. Check enclosed for $2.25 D 3.25 D Bill me for subscription and "1000 and One" G Name . Address . NEW FINANCE PLAN FOR - SCHOOLS, CHURCHES, ETC. We have just completed a new and unusual finance plan which will enable every school, church and similar insti- tution to own the latest 16mm. or 35mm. SOUND ON FILM PRO- JECTOR on liberal and convenient TERMS. WRITE FOR COMPLETE DETAILS We sell BELL & HOWELL, AMPRO, VIC- TOR, R.C.A,, SYNCROFILM, as well as DE VRY Equipment. WE ALSO HAVE SEVERAL SLIGHTLY USED AND REPOSSESSED TALKING PICTURE PROJECTORS THAT WE CAN OFFER AT LESS THAN COST. YOU CAN PURCHASE THESE AS WELL ON THE ABOVE CONVENIENT PAYMENT PLAN. ABSO- LUTELY NO INTEREST CHARGE. SUNNY SCHICK NATIONAL BROKERS 407 W. WASHINGTON BLVD. FORT WAYNE, IND,