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Presents abstracts of articles related to geography as of March 1933. "Agricultural Migration and the National Welfare"; "Geographic Forces in the Development of the American Sugar Beet Industry"; "The Highlands of Guatemala".

Presents abstracts of articles related to geography. "Tornado Frequencies in the United States and Their Relation to Storm Tracks"; "Notes on thePhysiography of the Southern Maracaibo Lowland of Venezuela".

Presents several abstracts on geography. "The Michigan-Wisconsin Boundary Case in Supreme Court of the United States, 1923-26"; "Geographic Regions of China"; "Kentucky Karts Landscapes"; "Geography of Los Angeles, California."

Presents several abstracts related to geography. "A Geographic Study of the Potato Industry of Nebraska," by Esther S. Anderson; "Changes in Land Utilization in the United States Since the War," by O. E. Baker; "Geographic Aspects of the Pennsylvania State Highway System," by Malcolm H. Bissell; "The First Greenland Expedition of the University of Michigan" by William Herbert Hobbs.

Presents several abstracts on issues related to geography. "A Geographical Analysis of the Apple Industry of the Annapolis Valley," by Charles C. Colby; "The Flora of the Unglaciated Region of the Northeastern America," by M. L. Fernald; "The Summer and Winter Weather of Selected Cities of North America," by George F. Howe; "Development of Transportation in South America," by Preston E. James.

Presents abstracts of articles on geography. "The Call for Geographers," by Wallace W. Wood; "Arable Land in the United States," by O. E. Baker and H. M. Strong; "Ocean Temperatures is Long-Range Forecasting," by Chas F. Brooks; "The Present and Past Climates of Our Leading Crop Plants," by Henry C. Cowles.

This article presents titles and abstracts of various articles published in the January 1, 1917 issue of the journal Annals of the Association of American Geographers . The article titled "Geographic Provinces of the U.S.," indicates that the gravimetric survey of the U.S. may be considered to have been begun in 1890. Previous to that date, 13 states had been established in the U.S. The article titled "Shriharikota and the Yanadis," indicates that Tahiti, the largest of the Society Islands is a volcanic doublet, submaturely disserted in radial consequent valleys, the larger cone being 17 nautical miles in diameter and 7,381 feet in height.

The article presents titles and abstracts of various research articles, related to geography. "A Canoe Journey in Southeastern Labrador," by Henry G. Bryant is about Labrador, which with its large unexplored areas and comparative accessibility, presents an attractive field for the pioneer explorer. The Atlantic seaboard is desolate owing to climatic conditions produced by the Labrador current. In addition to that, the article presents information on various other abstracts related to geography.

The article presents various titles of research papers related to geography by the Association of American Geographers. Some of papers included are "The General Magnetic Survey of the Earth," by L.A. Bauer, "Land Sculpturing in Arid Lands with Observations from Northeastern Africa," by W.H. Hobbs, "The Platforms of Barrier Coral Reefs," by T. Wayland Vaughan, "Botanical Phenomena and the Problem of Coastal Subsidence," by D.W. Johnson, "Characteristics of the Mississippi Delta in the Light of Comparative Studies of Some Old-World Deltas," by E.W. Shaw.

Focuses on the unrestricted fallibilist principle. Mistakes in thinking about incorrigibility and infallibility; Significance of Charles Peirce's book 'Collected Papers'; Classes of statements that have been offered as candidates for incorrigibility.

The article focuses on fraudulent alteration of commercial papers negligently drawn. The English decisions on the concerned subject establish two principles. First, as between drawer and acceptor, the former owes a duty so to draw as not to facilitate alteration, and he must answer to the latter for any loss resulting from failure to observe that duty. Secondly, as between the drawer or acceptor and subsequent parties there is no such duty, and, consequently, no liability for a failure to observe it.

The article presents comments of the author on the article, "Regional Differences in the World Atmospheric Circulation," by John R. Borchert, published recently in a issue of "Annals of the Association of American Geographers." Nonetheless there is considerable question concerning the significance of the five maps that are the core of Borcherts presentation. These remarks are directed to a brief consideration of the significance and interpretation of his maps. It is only proper to think that in the body and foothotes of his paper professor Borchert indicated some of the limitations of his study, that the scale of the maps did not permit the delineation of zones and regions in detail.

Comments on the 1966 paper by D.M. Triplehorn on the 'Morphology, internal structure, and origin of glauconite pellets' in the 'Sedimentology' journal. Microscopic observations of glauconite pellets; Ovoidal or spheroidal pellets; Tabular or discoidal pellets; Mammilated pellets; Ellipsoidal pellets; Vermicular pellets; Composite pellets; Fossil casts, internal molds or replacements.

Discusses the attempt of a cardiologist to assess the balance of blood flow through the pulmonary and systemic circulations of a child with congenital heart disease. Information on the Fick principle; Role of oxygen as an indicator in a assessing blood flow; Algebraic and modern symbolic form of the Fick principle; Details on how to estimate the ratio of flows.

The article presents the author's comments on an article "Optimum Sample Size for a Problem in Choosing the Population With the Largest Mean," by statistician Paul N. Somerville, published in the June 1970 issue of "Journal of the American Statistical Association." In the article Somerville described a procedure for selecting the population with the largest mean from normal populations with unknown means and a common known variance. The author claims that his procedure gives a unique minimax solution and that the minimax is a reasonable solution to the problem. According to the author, Somerville has not made it clear that his procedure gives only the local minimax solution. This makes practical applications of his procedure severely limited for it is difficult to think of a situation in which an experimenter would like to determine a local minimax value.

The article introduces several information on recent federal legislation related to programs for exceptional children published within the issue.

The article discusses various topics published within the issue, including one by Barbara Bateman on learning disorders and another by R. J. Capobianco on psychological diagnosis.

The article presents the criticism of the author against the article "Special Education for the Mentally Handicapped: A Paradox," by Orville Johnson. He points out several aspects of the article, including the approach to special education proposed by Johnson which involves increasing the motivational level of the learner by increasing the difficulty of the tasks being learned by the children. He comments that some of Johnson's exposition regarding the issue overlooks a major portion of the literature on the effects of motivational level upon learning and performance. Furthermore, the author stresses out that Johnson did not discuss the entirety of any of the additional experimental literature which suggests that heightened drive intervenes with learning and performance under certain conditions.

Presents a reply on the inconsistency in the analysis of alpha-particle scattering. Correlation between electromagnetic field and vectors; Analysis of the geometry of vector functions; Distinction between motion and force.

The response measure in which conditioning is measured ranges from the eyelid to electrodermal and vascular responses. Cognition, in the sense utilized by most of these experimenters, deals with awareness by the subject of something. Awareness is an essential ingredient of the development of expectancies. In the count-up to a noxious stimulus, studies, subjects can develop expectancies about the likelihood of occurrence of the stimuli, as well as expectancies about the time of occurrence of stimuli.

The article announces the incoming Christmas Holiday meetings of Section Q of the American Association for the Advancement of Science wherein the International Council for Exceptional Children is invited to participate. It likewise invites readers to contribute their suggestions, opinions or comments.

El artículo presenta noticias que tratan de la economía latinoamericana. Se informa sobre una comisión colombo-ecuatoriana que estudia las posibilidades de integración de las zonas fronterizas de ambos países. Se anuncia que Chile es uno de los grandes exportadores de papel. Se habla de un remanente de 300.000 toneladas de trigo que tiene Uruguay para exportación.

Reports on the ruling of a court in Massachusetts on a case regarding the validity of a contract between Nashua River Paper Co. and Hammermill Paper Co. which contains a stipulation that no action should be maintainable against the foreign corporation except in certain courts of the foreign state. Reason behind the ruling of the court; Other court cases with similar ruling.