Report discussing about 400 references pertaining to the hydrodynamic design of seaplanes have been compiled, and the information is presented in the form of abstracts classified under six main headings.

Combustion in a spark-ignition engine was investigated by means of the NACA high-speed motion-picture cameras. This camera is operated at a speed of 40,000 photographs a second and therefore makes possible the study of changes that take place in the intervals as short as 0.000025 second. When the motion pictures are projected at the normal speed of 16 frames a second, any rate of movement shown is slowed down 2500 times. Photographs are presented of normal combustion, of combustion from preignitions, and of knock both with and without preignition. The photographs of combustion show that knock may be preceded by a period of exothermic reaction in the end zone that persists for a time interval of as much as 0.0006 second. The knock takes place in 0.00005 second or less.

Uranium was successfully cast at temperatures as high as 1900 to 2000 deg C in crucibles made from CeS, CeS/sub 1.38/, ThS, ThS/sub 1.75/, and ThU/sub 0.7/S/sub 2/ with the sulfur pickup in all cases less than 0.15 wt.%, in some cases at low temperatures being less than 0.005%. A summary of actual sulfur absorption for different experimental temperatures and crucible types is given. The effect of the molten mixture of U and UBr/sub 3/(Br/U =2) upon some sulfide refractories was investigated. The results indicate that only ThS/sub 2/ and divalent sulfides like ThUS/sub 2/, US, ThS, etc., would withstand the U--UBr/sub 3/ mixture. Uranium may be separated from metal salt mixtures (CaCl/sub 2/, SrBr/ sub 2/, BaI/sub 2/, etc.) by distillation of the salt and fusion of the U in a sulfide crucible. (auth)

Front: Text describes action on various war fronts. Maps display the Normandy front, the eastern front, and New Guinea. Back: "Saipan! within the inner defenses." Includes 9 photographs.

Data acquired form the sampling of Yakima River water-t Tests is presented. The sampling took place on June 24, 1947. The samples were analyzed for ph value, alkalinity, chlorine, harness, NH(sub 3), NO(sub 3), biological oxygen demand, dissolved oxygen, and turbidity.

Data acquired from the sampling of Columbia River water July 24, 1947, is presented. The water was analyzed for temperature, hardness, turbidity, dissolved oxygen, chlorine, ph value, NO{sub 3}, NH{sub 3}, total solids, and alkalinity.

Data acquired form the sampling of Yakima River water July 24, 1947, is presented. The water was analyzed for hardness, turbidity, dissolved oxygen, ph value, alkalinity, chlorine, NH(sub 3), NO(sub 3), and total solids.

Data acquired from the sampling of Yakima River water on June 24, 1947, is presented. The water was analyzed for temperature, hardness, turbidity, dissolved oxygen, chlorine, alkalinity, NO(sub 3), NH(sub 3), and ph value.

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 Superintendent is not required to pay poll tax in order to legally serve as such officer.

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: Son of County Commissioner may be appointed Assistant Criminal District Attorney.

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 may expand county funds from general fund of county for prophylectic unit iff the Commissioners' Court deans same in behalf of public health and sanitation within the county.

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 person who attained the age of twenty-one years during the year 1941 and before the first day of February, 1942, vote in the July 25th primary election without first having obtained from the Tax Assessor - Collector a certificate of exemption, 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, Grover Sellers, regarding a legal question submitted for clarification: Under the provisions of Senate Bill No. 246, Acts of the 49th Legislature, Regular Session, 1945, what amount of money should be appropriated (in the 1946 budget for Bexar County) for the purpose of paying the salaries of the regular and extra deputies in the Assessor-Collector's office?

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, Grover Sellers, regarding a legal question submitted for clarification: May the qualified voters of a consolidated school district, such consolidation comprising an independent school district and a common school district, cast their vote for a county school trustee at large in an election for County School Trustees?

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, Grover Sellers, regarding a legal question submitted for clarification: Construction of general provision (b) of Senate Bill 317, 49th Leg. Ch. 378, Sec. 11, with respect to travel expenses incurred within the city or town where an employee is stationed.

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, Price Daniel, regarding a legal question submitted for clarification: Procedure for adoption of a child born to an unwed mother, inmate of a State insane hospital.