MAN AND HIS MACHINES Some Beneficent and Labor-Saving Instruments and Devices of the Red Cross-a Miniature Range for Training American Airmen In appearance it is nothing so much as an inverted table. Iron rods are inserted through holes in each of the four upright posts and the gauze is folded over these. When the folding is finished, the rods are withdrawn, and the gauze is ready to be cut into strips for bandages MECHANICAL DEVICES TO MAKE EASY THE -ROAD TO RECOVERY OF WOUNDED MEN (Left) An Electric Bullet Detector. A Carbon plate, placed in contact with the human body (it is here shown attached to the arm) forms the positive element of an electric circuit. A steel bullet or other metallic substance that may be lodged in the body forms the negative element. As the instrument with which the surgeon probes the wound comes in contact with the bullet, a distinct sound is audible to the surgeon through a head piece and receiver which he has adjusted to his ears. (Right) A plaster of Paris remover. The slightly curved base of highly polished metal to make gentle its operation, is inserted at the edge of the cast, the wheel of blades is started revolving and the cast is removed rapidly and almost painlessly. The device is operated by electricity AN AUTOMATIC SOCK-KNITTING MACHINE Brown Bros. It may be adjusted to knit socks of various sizes, and a fast operator can knit a pair of socks in thirty-one minutes. This speed, of course, would not be practicable for one operator over an extended length of time. The machine is operated by hand A wheeled stretcher, drawn by a trained dog, used for removing French wounded from the field. The boys in the photograph are of the Society of Military Preparation in Paris O Committee on Public Information TRAINING AMERICAN AIRMEN ON A MINIATURE RANGE The Air Service cadets in the gallery at the top of the picture are simulating the conditions of an aërial observer looking down from an airplane 6,000 feet above the ground, on a part of the front line trenches actually reproduced in the map below. The instructor in the foreground is flashing various colored lights, representing different kinds of artillery fire, on the map in accordance with the schedule at his right, and at varying speeds as shown by the stop watch. The cadets must make full note on their own maps before them of the location of the shots and prepare the radio messages which they would send. These messages are checked with the actual schedule of the instructor, in order to test the cadet's accuracy and speed of observation and transmission. Men who are not quick and accurate enough to gather intelligence in the skies are eliminated at this stage of the training ARTHUR W. PAGE, EDITOR CONTENTS FOR MARCH, 1918 Senator George E. Chamberlain THE MARCH OF EVENTS-AN EDITORIAL INTERPRETATION ENGLAND HAS INDUSTRIAL PEACE-WHY NOT WE? BURTON J. HENDRICK 481 AMERICAN LEADERS IN THE WORLD WAR (Portraits in full color) 489 FRANK DILNOT 497 FRANK PARKER STOCKBRIDGE RICHARD WILMER ROWAN 502 508 FRENCH STROTHER 513 529 ELLWOOD HENDRICK 531 GEN. TASKER H. BLISS 539 THE ITALIAN FRONT (With six maps in color) · MR. ALFRED H. SMITH MR. CHARLES H. MARKHAM MR. WALKER D. HINES 556 TERMS: $3.00 a year; single copies, 25 cents. For Foreign Postage add $1.00. |