Investigations were undertaken to improve the ailerons of a P-51 fighter so as to obtain greater effectiveness without increasing the stick forces. Modifications consisted of increasing the deflection range of the aileron to 70 percent and changing the original concave section to a thick section with beveled trailing edge. Results of the modified ailerons showed an increase in effectiveness over the original aileron of 70 percent at low speed and 55 percent at high speeds.

Contains detailed instructions for the inspection, maintenance, and repair of six types of caliber .50 Browning machine guns.

Discusses the azimuth instruments M1918 and M1918A2 in terms of their purposes, operations, maintenance, assembly, disassembly, and repair.

Designed to familiarize Army Air Forces personnel with publications, forms, and policies, in order to ensure efficient aircraft maintenance and standardized practices.

Report issued by the U.S. Bureau of Mines on the differing conditions of oxygen in explosives. Results from explosives samples with oxygen variations are presented. This report includes tables.

Front: Text describes action on various war fronts: Allied raids effective -- Stilwell in India -- Chinese repulse Japs -- Planes sink subs -- Against overconfidence -- Private buys $3,700 war bonds -- U.S. mission in Britain points to new fronts -- Labor will be 'frozen' -- Camacho asks for war -- 'Freeze' fish, razors -- New registration set -- Recruiting for WAAC -- Millions in war work -- Bombers to pop out like Model T's at Willow Run -- Kurdish revolt crushed -- Heavy action at Kharkov -- Himmler's aid wounded -- Axis drive in Libya -- RAF ruins Genoa. Large world map is keyed to text and illustrates time zones around the world. Inset maps show area occupied by Japanese troops near Chungking -- Nazi drives and Soviet attacks near Kharkov. Includes photographs: Beaufort torpedo-bombers under mass production in Australia -- Sec. Hull -- Lt. Gen. Arnold -- Lt. Gen. Somervell -- Rear Adm. Towers -- WAAC officer's winter and summer uniforms and Auxiliary's winter uniform -- Flying B-24 -- Bren Gun carriers in action -- Long-barrelled Russian rifles -- British 25 pounder fires on the enemy in Libya -- Hurricane bomber -- Training for motor torpedo boat …

Front: Text describes action on various war fronts: Cologne and Essen flattened -- Tiny subs find Sydney ready -- the Japanese "save face" -- Army of 4 1/2 million for '42 -- Mexico welcomed into war -- Rommel's forces turned -- Hitler's hangman dies -- Poison gas used in China -- Armies shift in Russia. Large world map is keyed to text and illustrates time zones around the world. Inset maps show Libyan battle, Dutch Harbor, Axis drives and British attacks at Libyan; Unalaska Is.; Unalaska Bay. Includes photographs: Producing the big seacoast rifles; Red gound defense on the Russian front; Nazis' Focke-Wulf 190 fighter; Yanks saw a motor show put on by Aussies; 4-motored Stirling bombers used over Cologne. Back: Enemy Tanks Are Vulnerable. Includes 10 photographs with descriptive text below each.

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: Under the facts submitted can the Commissioners' Court of Jack County appoint the partner of a brother of the County Judge as County Health Officer, 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: Under the facts submitted would the sheriff of Concho County be authorized to receive any compensation for going to El Reno, Oklahoma, and returning the prisoner ti Paint Rock, Concho County, or to Huntsville, Texas, 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: Under the facts submitted are the benefits offered by the Dallas Medical Plan, insurance benefits and if so, should the Plan come under the supervision of the State Insurance Department?

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: Under the facts submitted are the benefits offered by the Dallas Automobile Club considered insurance benefits, and if so, does the Club come under the supervision of the State Insurance Department?

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 a road district pay off a road indebtedness with money voted for road bonds and invest the remainder in United States War Bonds?

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: Should the County Clerk refuse to accept for record any affidavit that does not carry both a jurat and an acknowledgment.

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: County clerks - Return of original marriage licenses.

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: Right of firemen to participate in both city of Austin and State retirement plans.

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 or not it is necessary for a motor carrier to pay a filing fee in order to have highway restrictions temporarily removed from his present certificate of convenience and necessity.

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: County School Trustees - Holding of two offices of employment is prohibited by the Constitution and related matter.

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: Elections - State Representatives - Filing for places on ballot.

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: Who is entitled to the excess money for which property sells under a tax sale?

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: State Board of Hairdressers and Cosmetologists has no legislative power and cannot waive requirements of law with reference to the payment of renewal license fees of operators.

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: Commissioners' Court of Montague County has no authority to pay items of hospital treatment for indigent sick to out-of-county hospital and related matter.

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: Residential requirements of candidate seeking office of county commissioner, and 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: Is the justice of the peace, acting as Registrar for the Bureau of Vital Statistics, authorized to collect fees where there is no fee fixed by law for the service performed by him as such Registrar, 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: Can a delayed certificate of birth be filed under the provisions of House Bill 614, Acts of the 46th Legislature as amended by House Bill 974, Acts of the 47th Legislature (codified as Rule 51a, Article 4477 V. C. S.) although the person whose birth is sought to be established is no longer living?