The ArgumentThe Republic of Letters of the late seventeenth and eighteenth centuries teaches us two lessons about style in science. First, the bearer of style—individual, nation, institution, religious group, region, class—depends crucially on historical context. When the organization and values of intellectual life are self-consciously cosmopolitan, and when allegiances to other entities are culturally more compelling than those to the nation-state, distinctivelynationalstyles are far to seek. This was largely the case for the Republic of Letters, that immaterial but nonetheless real (...) realm among the sovereign states of the Enlightenment. Second, that form of objectivity which made science seem so curiously detached from scientists, and therefore so apparently unmarked by style at any level, also has a history. The unremitting emphasis on impartial criticism and evaluation within the Republic of Letters encouraged its citizens to distance themselves first from friends and family, then from compatriots and contemporaries, and finally, in the early nineteenth century, from themselves as well. Although this psychological process of estrangement and ultimately of self-estrangement may seldom have been completely realized, the striving was genuine and constitutes part of the moral history of objectivity. (shrink)

As part of the international efforts to observe the Venus transit of June 1769, Protestant Denmark-Norway engaged the Viennese astronomer Maximilian Hell, despite Hell being Catholic and even Jesuit. Hell’s site of observation was Vardø in the remote northeastern corner of Norway. He had ambitions to present his journey and scientific results—which reached far beyond astronomy—in a grand work entitled Expeditio litteraria ad Polum arcticum. This work was never printed, although several fragments were published otherwise. Among the pieces not published (...) were his geomagnetic observations. Hell’s original manuscripts contain a considerable amount of declination readings as well as notes on instruments, practical procedures, and theoretical reflections involved in his work. In Vardø he set up a magnetic observatory, along with the astronomical one, and recorded, on an irregular schedule, the magnetic declination several times a day from April to June 1769. The records exhibit a clear signature of the diurnal variation as well as magnetic storms. Hell vigorously refuted contemporary suggestions of a connection between magnetic storms and Northern Lights. On the return voyage, a number of observations of magnetic declination along Norway were carried out, with a technique combining a gnomon with observations of the Sun’s altitude with a quadrant. (shrink)