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This article analyzes the US Bureau of Indian Affairs model Indian school exhibit at the Chicago World's Columbian Exposition as an artifact of spatial and social relations. It uses architectural drawings to examine how assimilationist ideals were spatialized and displayed in a functioning industrial school that structured education, race, and morality. At the same time, it considers the decorations of indigenous material culture and the resistances and ambivalences of the children who performed there. By considering the school as a stage for many forms of agency this article shifts the discourse from the exhibit's planners to those who lived it. [ABSTRACT FROM AUTHOR]

Freshwater and marine fishes exhibit a dichotomy in biosynthesis of long-chain polyunsaturated fatty acids (LC-PUFAs) from shorter-chain precursors. Marine species generally lack this ability due to deficiencies in requisite desaturase or elongase enzymes. Gulf killifish Fundulus grandis is a euryhaline cyprinodont whose fatty acid (FA) dynamics have not been previously examined. We utilized experimental variations in exogenous FAs available to spawning F. grandis in order to construct a multitissue evaluation of FA allocation and quantify effects on reproductive output and offspring fitness. No significant decrease in fecundity occurred in animals consuming low levels of LC-PUFAs, although embryo viability rates were affected. Maternal dietary FA variation did produce differences in starvation tolerance, hypoosmoregulatory ability, and acute thermal stress tolerance for larvae. These variations occurred at elevated salinities and temperatures seldom if ever encountered by F. grandis in culture or natural environments and are unlikely to affect larval survival in these settings. FA composition of eggs and tissues from spawning females suggested potential biosynthesis of LC-PUFAs from shorter-chain precursors in F. grandis. Results of this study suggest that F. grandis possesses physiological mechanisms allowing maintenance of reproductive function when subjected to dietary deficiencies in FAs generally considered essential for marine fishes. [ABSTRACT FROM AUTHOR]

Lorraine Dastoti and Peter Galison's recent book on the history of scientific objectivity showed that, over the course of the nineteenth century, natural scientists of many stripes became intensely concerned with the issue of the distorting influence that their own subjectivities might be having on their observations and representations of nature. At very nearly the same time, experimental psychology arose specifically to investigate scientifically the nature and structure of subjective consciousness. Although Daston and Galison briefly discussed some basic psychological issues—especially the discovery of differences in human color perception—they did not strongly connect the widespread European concern with scientific objectivity to the rise of experimental psychology. This essay critically examines the theoretical and empirical activities of the experimental psychologist who most energetically strove to discover the structure of subjective conscious experience, Edward Bradford Titchener. Titchener's efforts to produce an objective study of subjectivity reveal important tensions in early experimental psychology and also serve to situate experimental psychology at the center of an important intellectual struggle that was being waged across the natural sciences in the decades surrounding the tum of the twentieth century [ABSTRACT FROM AUTHOR]

A correction to the article "Diet-Induced Fatty Acid Variation in Critical Tissues of a Spawning Estuarine Fish and Consequences for Larval Fitness" that was published in a previous issue is presented.

In our current moment, there is considerable interest in networks, in how people and things are connected. This essay outlines one approach that brings together insights from actor-network theory, social network analysis, and digital history to interpret past scientific activity. Multispecies network analysis (MNA) is a means of understanding the historical interactions among scientists, institutions, and preferred experimental animals. A reexamination of studies of sexual behavior funded by the Committee for Research in Problems of Sex between the 1920s and the 1940s demonstrates the applicability of MNA to clarifying the relations that sustained this area of psychology. The measures of weighted degree and betweenness can highlight which nodes (whether organisms or institutions) were particularly "central" to this network. Rats featured as the animals most widely studied during this period, but the analysis also reveals distinct institutional and disciplinary cultures where different species were favored as either surrogates for humans or representatives of more general biological groups. [ABSTRACT FROM AUTHOR]