The closing date of the present volume (1968) marks the fortieth anniversary of this bibliography issued in five-year periods and covering the World literature. Previous numbers have appeared as: G. S. A. Special Papers nos. 27 and 42 and as G. S. A. Memoirs 37, 57, 84, 92 and 117. The O. P. Hay and A. S. Romer bibliographies provide nearly complete references for all the years before 1928. Our early volumes are now out-of-print. Our bibliographies are more comprehensive than mere reference lists. They provide access to information such as new names, new discoveries, faunal lists, and other pertinent material, by means of index headings. The indexes have been largely constructed from our own abstracts of the original articles as prepared on cards filed under the authors’ names. The indexes refer to citations in the Author Catalogue. The Systematic Synopsis of Classification finally brings into order the proposals for changes and additions to the classification of the Chordata. An attempt has been made to discover and index all new scientific names. There are limits to the powers of detection. If an author casually proposes a novelty without so indicating, the name can easily escape us. At the beginning we list the new periodicals with abbreviations and those with names changed since previous periods. The indexes provide the kind of information that would be conveyed by abstracts. It may be that the index form is handier than the usual abstract form entered in an Author Catalogue. We believe that the. . .

Abstract Northeast Texas, more commonly known as East Texas, is one of the major oil- and gas- producing provinces in North America. Production has been found throughout most of the sedimentary section of Northeast Texas, which ranges from Upper Jurassic into the Tertiary. Sparse control indicates that basement is a complex of folded and faulted Paleozoic rocks (Ordovician-Lower Pennsylvanian). All the overlying rocks that have been definitely dated are 'Mesozoic and Cenozoic in age, the oldest strata known to be Mesozoic being the Upper Jurassic Werner Formation; between this and basement is a redbed sequence that has been penetrated locally, and has been assigned to the Eagle Mills Formation. Oil and gas production has been established in the Smackover, Bossier, and Schuler formations of the Jurassic. The Lower Cretaceous Comanche Series contains oil and gas accumulations in the Trinity Group (Travis Peak Formation, Glen Rose subgroup, Massive Anhydrite [“Bacon Lime”], upper Glen Rose, and Paluxy Formations); the Edwards Limestone of the Fredericksburg Group; limestones of the Georgetown subgroup; and the Buda Limestone of the Washita Group. The Upper Cretaceous Gulf Series includes the Woodbine Group—one of the most prolific hydrocarbon reservoirs in the United States, and production has been established in the Eagle Ford, Austin (Tokio Formation), Taylor (Wolfe City Formation), and Navarro (Nacatoch Sandstone) Groups. The Tertiary of Northeast Texas comprises the Paleocene Series (Midway Group) and Eocene Series (Wilcox and Claiborne Groups). Scattered hydrocarbon production has been established in the Wilcox Group and from the base of the Claiborne Group. Mesozoic sedimentation began with a transgression of the base-leveled complex of deformed Paleozoic rocks constituting the Ouachita fold belt; this transgression was originated by the ancestral Gulf of Mexico. The close of the Jurassic Period and the Comanche and Gulf Epochs were marked by major regression; initiation of each succeeding epoch was marked by major transgression. Regressions and transgressions of lesser extent punctuated the history of each of the epochs. In general, Mesozoic and Cenozoic strata dip and thicken toward the center of the Northeast Texas area, which may be divided into five tectonic provinces: (1) Updip belt, (2) Mexia-Talco fault zone, (3) Downdip belt, (4) Northeast Texas basin, and (S) Sabine uplift. Minor accumulation of hydrocarbons have been established on some anticlinal structures in grabens of the Mexia-Talco fault zone, and major accumulations have been trapped against faults in this zone. In the downdip belt and in the Northeast Texas basin, major accumulations have been established on many structures generated by salt movement. On the Sabine uplift, accumulations in structural-stratigraphic traps are common, including the East Texas field. Data from widely scattered wells in Northeast Texas indicate that igneous activity—intrusions, lava flows, and ash falls—occurred in post-Paleozoic and pre-Early Cretaceous time. There is a little evidence to indicate pre-Late Jurassic igneous activity.

This is the seventh volume in a series treating the world literature of our subject from 1928 to 1958 inclusive. Previous volumes have appeared as: G. S. A. Special Papers, nos. 27 and 42, and G. S. A. Memoirs 37, 57, 84 and 92. Each volume covers a five-year period. The Oliver P. Hay bibliographies list and index the North American tides from the beginning, to die end of 1927. The two Alfred S. Romer volumes (G. S. A. Memoir 8 7) cover the rest of the world from the earliest published references, to the end of the year 1927. The Preface of our last volume explains the selection of tides and the coverage attempted, as well as the method of using the indexes. As before, the number of new serials is mounting rapidly; now at the rate of at least one a month. Furthermore, a marked increase in the number of authors may be noted in the Author Catalogue. This has necessitated the devotion of much more time to the searching of collateral periodicals, some of which may carry only one or two titles in the entire five-year period. Mrs. Harriet Allison retired just as the present volume went to press. She has been faithfully laboring on the project for the past twelve years. Mrs. Rachel Nichols has done most of the work on the Systematic Index of this volume. Miss Helen McGinnis is mainly responsible for the Subject Index in its newly modified form. She has considerably enhanced. . .

Abh. Deutsch. Akad. Wiss. Berlin, K l. III. Abhandlungen der Deutschen Akademie der Wissenschaften zu Berlin. Klass für Bergbau, Hüttenwesen und Montangeologie. QE1.A328 Abh. Hess. Landesamt. Bodenforsch. Abhandlungen des Hessischen Landesamtes für Bodenforschung. Wiesbaden. Cat. by author Abh. Landesmus. Naturk. Münster. Abhandlungen aus dem Landesmuseum für Naturkunde zu Münster in Westfalen. Münster. QH5.M8 Abh. Naturhist. Ges. Nürnberg Abhandlungen der Naturhistorischen Gesellschaft zu Nürnberg. Q49.N8 Abh. Sächs. Akad. Wiss. Leipzig, Philologisch-hist. Kl. Abhandlungen der Sächischen Akademie der Wissenschaften zu Leipzig. Philologisch-historische Klasse. AS182.S33 Abs. New World Archaeol. Abstracts of New World Archaeology. Society for American Archaeology. Salt Lake City. GN700.A2 Acad. Sinica, Lab. Vert. Pal., Mongr. Ser. C. Academia Sinica, Laboratory of Vertebrate Paleontology, Monograph Series C. Peking. 7490.2.5627Ser. C Acta Archaeol. Carpathica. Acta Archaeologica Carpathica, Academia Scientiarum Polona. Period. Acta Archaeol. Univ. Lodziensis. Acta Archaeologia Universitatis Lodziensis. not seen Acta Arctica. Acta Arctica, København. G601.A25 Acta Fac. Rer. Nat. Univ. Comen., Anthrop. Acta Facultatis Rerum Naturalium Universitatis Comenianae. Anthropologia. Bratislava (City) Univerzita. Prirodovedecka fakulta. Period. Acta Geol. Sinica. Acta Geologica Sinica, Peking. 7401.4774 Acta Musei Macedonici Sci. Nat. Acta Musei Macedonici Scientiarum Naturalium, Prirodanaucen muzej., Skopje, Yugoslavia. QH7.S47 Acta Praehist. Acta Praehistórica, Centro Argentino de Estudios Prehistóricos, Buenos Aires. GN700.A27 Acta Trab., I st Congr. Sudamer. Zool. Actas y Trabajos del Primer Congreso Sudamerican. Zool. QL1.C587 Acta Univ. Carolinae, Phil, et Hist. Acta Universitatis Carolinae, Prague Universita Karlova. Philosophica et Historica. AS142.P772