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A simplified procedure is described for the preparation of crystalline bacteriochlorophyll from R. rubrum. The chemical dehydrogenation of bacteriochlorophyll with quinones is shown to give high yields of 2-desvinyl-2acetyl-chlorophyll a, whereas the photo-oxidation of bacteriochlorophyll results in a mixture of products of which 2-desvinyl-2acetyl-chlorophyll a is only a minor constituent. A number of interesting results have been observed spectrophotometrically during these oxidations under different reaction conditions. These observations are discussed and possible reaction mechanisms are outlined. The proton magnetic resonance spectrum of 2-desvinyl-2acetyl-chlorophyll a in deuteroacetone and the visible absorption spectra of this pigment and its magnesium-free derivative in acetone are reported. As expected, these spectra exhibit a marked resemblance to chlorophyll a and pheophytin a.

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Graphical presentation of he three-phase region at and near the triple point of parahydrogen.

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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, Waggoner Carr, regarding a legal question submitted for clarification: Whether the Director of the Cotton Research Committee should be reimbursed on an actual expense or on a per diem basis while traveling for the State 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, Waggoner Carr, regarding a legal question submitted for clarification: Constitutionality of Section 5 of Article 5766 as amended by House Bill 410, Acts of the 59th Legislature, Regular Session, Chapter 690, page 1601, at page 1604.

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, Waggoner Carr, regarding a legal question submitted for clarification: Constitutionality of Sections 1-3 of Article 7044a, Vernon’s Civil Statutes, in view of Section 9 of Article 8 of the Texas Constitution.

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, Waggoner Carr, regarding a legal question submitted for clarification: Whether firms which provide TV cable service have the right to place their cables along State Highways within the highway right of way.

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, Waggoner Carr, regarding a legal question submitted for clarification: Authority of Grayson County to accept a deed from the Kansa-Oklahoma and Gold Railroad Company to a bridge lying between Texas and Oklahoma spanning the Red River about 9 miles east of Denison, Texas 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, Waggoner Carr, regarding a legal question submitted for clarification: Whether the retirement funds of the Employees Retirement System may be invested in corporate stocks and bonds other than those in which the Permanent University of Texas is invested.

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, Waggoner Carr, regarding a legal question submitted for clarification; Whether control of the building and grounds purchased with Texas Employees Retirement System Trust funds is within the jurisdiction of the State Board of Control or the Retirement System.

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, Waggoner Carr, regarding a legal question submitted for clarification; Construction of Section 8 of Article V of House Bill 12, Acts of the 59th Legislature, Regular Session, 1965, (General Appropriation Act) relating to payment for injuries for state employees injured while performing the duties of any hazardous position to which he is assigned.

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, Waggoner Carr, regarding a legal question submitted for clarification; Whether Article 1436-2, V.P.C., authorizes the prosecution of a person who is customarily engaged in the business of obtaining motor vehicles for scrap disposal, for failure upon demand by the State Highway Department to surrender to such Department certificates of title to such motor vehicles.

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, Waggoner Carr, regarding a legal question submitted for clarification; When, under section 2(b) of Article 2688L, Vernon's Civil Statutes, the abolishment of the office of County Superintendent becomes effective, do Articles 2701 and 3888, Vernon's Civil Statutes, apply: 1. To constitute the County Judge as ex-officio County Superintendent 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, Waggoner Carr, regarding a legal question submitted for clarification; Whether a school district (Bay City I.S.D.) is eligible for a refund under article 4054, Vernon's Civil Statutes (Which refers to Article 4053d) on shell purchased and used for building roads around its high school property pursuant contract.

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, Waggoner Carr, regarding a legal question submitted for clarification; Where a husband fails to pay child support pursuant to a divorce decree, is it the duty of the District Clerk to prepare and file papers citing the husband for contempt of Court, and is it the duty of the County or District Attorney to represent the wife at such hearing?

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, Waggoner Carr, regarding a legal question submitted for clarification; Construction of Section 14 of Article V of House Bill 12, Acts of the 59th Legislature, Regular Session, relating to rate of transportation allowance to State employees who travel in a conveyance not owned by the employee or rented from a public transportation company.

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, Waggoner Carr, regarding a legal question submitted for clarification; In the interpretation of the meaning of the term "nonresident", as the same is used in Art. 6687b, Vernon's Civil Statutes, Sec. 3, paragraph, is there a presumption, rebuttable or otherwise, that a member of the armed forces of the United States, who has been required by his military duties to reside in the State of Texas for a period of more than 90 days, is no longer a "nonresident"?

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, Waggoner Carr, regarding a legal question submitted for clarification; Construction of Article 26.04, Vernon's Code of Criminal Procedure, in reference to fees of attorneys appointed to represent defendants who are too poor to employ counsel.

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, Waggoner Carr, regarding a legal question submitted for clarification; Under Article 14.21, V.C.S., Taxation-General, what is the authority of the County Judge to act as agent or representative of the Comptroller of Public Accounts and related questions?