Text describes action on various war fronts: Russia, Tunisia, Libya, West Africa, Martinique, New Guinea, Solomons. Front: large world map is keyed to text and illustrates time zones around the world. Inset maps: Offensive in New Guinea; Tunisia; North Africa; South Russia. Photographs: Guadalcanal; Jeeps in Russia; Unloading in North Africa; U.S. patrol landed on one of the isolated islands of the Aleutian group. Back: Aircraft insignia. Aircraft insignia are subject to change constantly. These are based on information available up to November 30, 1942.

From Summary: "The equations relating the wing and tail loads are derived for a unit elevator displacement. These equations are then converted into a nondimensional form and charts are given by which the wing- and tail-load-increment variation may be determined under dynamic conditions for any type of elevator motion and for various degrees of airplane stability. In order to illustrate the use of the charts, several examples are included in which the wing and tail loads are evaluated for a number of types of elevator motion. Methods are given for determining the necessary derivatives from results of wind-tunnel tests when such tests are available."

Front: Text describes action on various war fronts: Mediterranean, Tunisia, Libya, Lake Chad, Italy, Solomons, New Guinea, Russia. Large world map is keyed to text and illustrates time zones around the world. Inset maps: the Advance on Buna; North Africa. Photographs: New Guinea; Welcome to North Africa; Scene in Libya; North Africa: the march westward Back: Life saver #2 : winning friends - helping people. Text and photographs highlight the importance of training soldiers to interact successfully with local cultures.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Whether the ownership of majority of stock in one corporation by same persons who control majority of stock in another corporation by virtue of ownership and by trust agreement constitute such corporations a single chain under Article 1111d, V. P. C., and a related question.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Can Lamar County legally appropriate money derived from delinquent tax collections as described to the general fund to take care of the demands made upon such fund?

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Whether the subject contract would violate item 600 of the Railroad Commission's Motor Common Carrier Tariff.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Would a country or city of the State of Texas be authorized to acquire the site for an airport by lease from an individual, instead of purchasing same as provided in Article 1269h, Vernon's Annotated Civil Statutes, and related questions?

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Is Cooke County governed by Senate Bill No. 5, Chapter 465, Section 13A p. 1770 in respect to the employment and payment of a stenographer or assistant to the county judge?

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Does the Board of Insurance Commissioners have the power to enforce collection of occupation tax upon gross premiums from foreign life insurance companies and from similar domestic companies under facts submitted?

Front: Text describes action on various war fronts: North Africa, Libya, Southern Europe, New Guinea, Solomons, Russia, Aleutians, Far East waters, Madagascar. Large world map is keyed to text and illustrates time zones around the world. Smaller map (3 insets): Invasion of Africa. Photographs: Practice led to invasion -- Tanks land for beach operation -- German planes caught by long-range fighters -- Captured Nazi officers perch on hood of British jeep. Back: Why we fight! Also includes photographs.

Report presents the results of a study of combustion in a spark-ignition engine given in NACA Technical Reports 704 and 727. The present investigation was made with the NACA high-speed motion-picture camera, operating at 40,000 photographs a second, and with a cathode-ray oscillograph operating on a piezoelectric pick-up in the combustion chamber. Photographs are presented showing that the origin of knock is not necessarily in the end gas. The data obtained indicates that knock takes place only in a part of the cylinder charge which has been previously ignited either by autoignition or by the passage of the flame fronts but which has not burned to completion. Mottled regions in the high-speed Schlieren photographs are demonstrated to represent combustion regions.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Whether improvements placed upon exempt land of a county by a lessee, with no right to remove the same at the expiration of the term of such lease, are taxable as personal property, and related questions.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Matter of registering a trade name for a magazine -- "Esquire"

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: It is mandatory that the district judge appoint a county auditor for Matagorda County, Texas, a county having a tax valuation in excess of Fifteen Million Dollars ($15,000,000) according to the last approved tax roll.

Front: Text describes action on various war fronts: North Africa -- New Guinea -- Solomons -- Madagascar -- Russia -- Southeast Asia -- Far Eastern waters. Large world map is keyed to text and illustrates time zones around the world. Includes inset maps: North Africa -- Southwest Pacific. Photographs: Mud, mud, mud! -- Up in the world [Indian soldier sitting atop a Jack Ladder] -- Somewhere in Australia [supply freighter hits reef breaking it in two] -- Own weapons turned on Japanese. Back: The text entitled "Uncle Sam's desert training corps" describes the training center in Southern California. Includes photographs: Desert destroyers -- Desert Rats: new style.

A guide for army medical supply depot personnel. Discusses establishment, operation, organization, employment, and training standards.

Front: Text desribes action on various war fronts: Solomons, Central and South Pacific; North Africa; Italy; Russia; Burma and India; China; Aleutians. Large world map is keyed to text and illustrates time zones around the world. Inset maps show North Africa; The Caucasus. Includes 10 photographs. Back: There is no all-purpose plane. 20 photographs show Heavy Bombers -- Medium and light bombers -- Fighters -- Torpedo bombers -- Transports -- Naval patrol planes. Text accompanies the photographs.

Report presenting an application of the principle of aileron-stick forces and mechanical advantage to an aileron installation in which the stick forces are small over the low-deflection range and excessively large at full deflection.

"Hot-air engines with dynamic compressors and turbines offer new prospects of success through utilization of units of high efficiencies and through the employment of modern materials of great strength at high temperature. Particular consideration is given to an aerodynamic prime mover operating on a closed circuit and heated externally. Increase of the pressure level of the circulating air permits a great increase of limit load of the unit. This also affords a possibility of regulation for which the internal efficiency of the unit changes but slightly. The effect of pressure and temperature losses is investigated" (p. 1).

A monocoque box beam consisting of a 24S-T aluminum-alloy sheet reinforced by four bulkheads and by longitudinal stringers and corner posts was subjected to bending loads as follows: pure bending about the lift axis, cantilever bending about the lift axis, and pure bending about both lift and drag axis. Longitudinal strains were measured for loads up to a load at which permanent set became measurable. The loads were sufficient to produce buckling of the sheet between stringers on the compression side of the box. The only noticeable effect of this buckling was a small increase in extreme-fiber strain on the compression side. The measured strains and measured deflections differed less than 10 percent from those computed from the simple beam theory after taking account of the effective width of the buckled sheet. The effect of the bulkheads on the distribution of stringer strain was negligible.

Report presenting a method of comparing the performance, weight, and general dimensional characteristics of intercoolers. The performance and dimensional characteristics covered in the comparisons include cooling effectiveness, pressure drops and weight flows of the charge and cooling air, power losses, volume, frontal area, and width.

Report presenting a control-motion study in flight that is part of series covering a range of types and sizes of modern airplanes. This particular one involves the PBM-3 flying boat, which is equipped with a control mechanism typical of the cable-type systems in large transport, cargo, or bomber airplanes as well as those employed in flying boats. The elasticity of the elevator control system of the PBM-3 was such to limit the obtainable acceleration to about 3g for center-of-gravity positions in the usual operating range; that is, 26 to 30 percent mean aerodynamic chord, and for the range of airspeeds covered by the tests.

"Various versions of pendulum masses have been developed abroad within the past few years by means of which resonant vibrations of rotating shafts can be eliminated at a given tuning. They are already successfully employed on radial engines in the form of pendulous counterweights. Compared with the commonly known torsional vibration dampers, the pendulum masses have the advantage of being structurally very simple, requiring no internal damping and being capable of completely eliminating certain vibrations" (p. 1).

Report presenting an investigation conducted in the full-scale tunnel to determine methods of improving the cooling of the B-24D engine installation. The B-24D is a four-engine high-wing monoplane having a span of 110 feet, a wing area of 1048 square feet, and a gross weight of 56,000 pounds.