This addresses the transformations of metaphysics as a discipline, the emergence of analytical mechanics, the diverging avenues of 18th-century Newtonianism, the body-mind problem, and philosophical principles of classification in the life sciences. An appendix contains a critical edition and first translation into English of Newton's scholia from David Gregory's Estate on the Propositions IV through IX Book III of his Principia.

When attempting to capture the concept of enlightenment that underlies and motivates philosophical (and political and scientific) developments in the 18th century, historians of philosophy frequently rely upon a needlessly but intentionally exclusive account. This, namely, is the conception of enlightenment first proposed by Kant in his famous essay of 1784, which takes enlightenment to consist in the “emergence from the self-imposed state of minority” and which is only possible for a “public” to attain as a result of the (...) public use of reason, a privilege enjoyed by citizens and exemplified in the activity of the scholar. That women, among other groups, did not hold the status of citizens and did not enjoy access to the institutions or training that might gain them recognition as scholars is apparently not a concern for Kant, as he notes that the enlightened condition is likely out of reach anyway for “by far the greatest part of humankind (including the entire fair sex)” (AA 8:35). This naturally leads one to wonder what a history of this period could look like when considered from the perspective of a different, more inclusive conception of enlightenment, and in this chapter I propose to conduct an experiment of sorts just along these lines. As opposed to Kant’s exclusionary conception, I will instead take that proposed by his distinguished contemporary, Moses Mendelssohn, as my starting point. In addition to offering a conception of enlightenment distinctive both for its wide scope and progressive character, Mendelssohn’s has the advantage, or so I will show, of bringing the manifold intellectual contributions of a diverse set of women into focus, though it does more than this in that it also reveals these women to actively and critically engage with key aspects of Mendelssohn’s and others’ philosophical views. (shrink)

Examines the development iun the period between Descartes and the mid 19th century of the concept of form in semantics.

This article contributes to the historiography of scientific objectivity as well as to the broader attempt to historicize basic epistemic categories by examining the case of empirical psychology in eighteenth-century Germany. From the time when the philosopher Christian Wolff first presented empirical psychology in the late 1720s until Kantian philosophers elaborated on the topic towards the end of the century, the discourse hinged on discussions of how to obtain scientific knowledge of the soul. Whereas the work of (...) Wolff and his followers reflected established epistemic techniques for accomplishing this, from the early 1770s philosophers highlighted a new category of difficulties connected to the development of a systematic method of psychological self-observations. These difficulties, I argue, both complement and complicate the picture of how the subject became an obstacle to knowledge first in the mid-nineteenth century. (shrink)

During high summer 1721, while rioters and bankrupts gathered outside Parliament, Robert Walpole's new ministry forced through a bill to clear up the wreckage left by the stock-market crash, the South Sea Bubble, and the visionary projects swept away when it burst. In early August the President of the Royal Society Isaac Newton, a major investor in South Sea stock, and the Society's projectors, learned of a new commercial scheme promising apparently automatic profits, a project for a perpetual motion. Their (...) informants were a young Viennese courtier Joseph Emmanuel Fischer von Erlach, a contact of Desaguliers recently engaged in industrial espionage in northern England, and the Leiden physics professor Willem 'sGravesande, who had visited London five years earlier. They reported that they had been summoned to a remarkable series of demonstrations in the castle of Weissenstein, the seat of the Landgrave of Hesse-Kassel. In a carefully guarded room of the castle there was set up a hollow wooden wheel covered in oilcloth, about 12 feet in diameter and 18 inches thick on an axle 6 feet in length. Its designer, a Saxon engineer and clockmaker Johann Bessler, who travelled Germany under the name Orffyreus, had been in Kassel for four years, published schemes for perpetual motion and been appointed commercial councillor. The Landgrave, well-known as a patron of advanced engineering schemes, commissioned him to build a new machine and put it on show before expert witnesses (Figure 1). (shrink)

There has been an explosion of interest in “innovation-oriented knowledge” and utility in early modern knowledge economies. Despite this, a healthy skepticism surrounding the category of “useful knowledge” persists, at least in part because of its association with intentional concealment. Helpful in many ways, this skepticism has fostered a tendency to overlook a variety of efforts to teach “useful knowledge” in the period: efforts that were anchored in engagement with the real and involved the cultivation of an ability to direct (...) the powers of the imagination. Indeed, for some the imagination served as a faculty central to an epistemology of use. This article takes as its example a handbook written by an early political economist who endeavored to teach readers how to imagine uses for things they observed in collections while traveling so they would be better prepared to participate in a new, transnational culture of innovation. (shrink)

Doctors have always thought, it seems, that the female body is more susceptible to illness than the male. Ancient medicine founded this dogma on the doctrine of elementary qualities, in attributing to woman a cold and humid constitution. As heat is the principal instrument which nature uses to produce the forces of the body and to maintain them, it must be lacking in woman, as is proved by her weakness, the softness of her limbs, her lack of external sexual organs (...) and the crudeness of her menstrual blood. If the Aristotelians and the Galenists diverge, in the Renaissance and in the XVIIth century, about the nature—fertile or not—of the “female seed,” they agree to pledge the female body to illnesses. Such a predisposition is explained by the female constitution: its coldness and its humidity, as well as retaining women's strength badly, contribute to giving them a “soft, slack body, of rare texture,” little suited to letting the body fluids, of which it is full, circulate correctly; their blood, corrupted by humidity, instead of being properly heated like it is in men, accumulates, blocks up the too small blood-vessels and causes all the illnesses of which they are the habitual victims. To this it is necessary to add the pathogenic importance of the womb, “a part of the body so sensitive and so easily upset, that its least indisposition causes an infinity of strange and almost unbearable evils.” The indispositions which affect this part of the body are always in relation to humidity or dryness, that is with “the two excrements” which it receives: sperm and menstrual blood. Whether, insufficiently impregnated by the virile liquor, “it mounts to the liver and other higher parts of the body to suck humidity from them until it becomes moist,” or it retains for an abnormally long time the seed, which decays inside it; or the periods are suppressed, or on the other hand they are produced too often; all womens illnesses are a question of impeded or excessive discharge. (shrink)

As the seminal essay, it gives title to the present volume, and is here translated into English for the first time. In this essay, which marked a change of direction in Wind's own development, he argues that two opposing styles of portraiture, exemplified in the art of Gainsborough and Reynolds, can be related to the different notions of humanity subscribed to by the philosophers David Hume and James Beattie. Other important studies, also reprinted here, make this volume an excellent resource (...) to Wind's tremendous contributions to art history. (shrink)

In 1786, Robert Blair, an unknown astronomer from Edinburgh, wrote a paper that would remain unpublished. In his manuscript, Blair gives a systematic treatment of the Newtonian kinematics of light, taking into account in the absolute space of Newton the motion of the light source, that of the observer, and the velocity of the corpuscles of light. Two years before, in the context of Newton's corpuscular theory of light, John Michell had pointed out that the velocity of light could be (...) measured with the help of refraction experiments. Blair went a step further and inferred the existence of what we now call the Doppler effect: a variation of refraction due to a relative motion of the source and the observer. Blair's proposal is at the roots of Arago's well‐known 1806–10 experiments on the velocity of light. In the context of the undulatory theory of light, Blair proposed an experiment to determine the absolute motion of the Earth, laying the bases for the famous experiment performed by Albert Michelson 100 years later. In fact, this manuscript contains the very questions of light relativity, the roots of spectroscopy, and addresses the very problems that would be hotly debated in the nineteenth century, only to be solved by Einstein in 1905. (shrink)

ABSTRACT‘Moderation’ in late seventeenth-century Britain indicated, at least in religious circles, an attitude of benevolence and restraint towards those who differed on questions not essential to the Christian faith. During the early part of the following century, the term was extended to cover essentials of the faith. In that context, Philip Doddridge designed the curriculum of his Dissenting academy, operative in Northampton from 1730 to 1751, to eschew the use of creeds and confessions of faith, as tending to (...) bigotry, and to pursue moderation in the teaching of philosophy, ethics and theology through the use of an extensive and eclectic range of sources of differing, and often mutually conflicting, views, with the aim of promoting in his students an epistemic humility leading to greater charity and unity among Christians and the use of reason subject only to the authority of Scripture. The article explores the sources that Doddridge used in some of the principal topics addressed in his lectures in order to demonstrate his method and its implementation, thereby illustrating his pursuit of moderation in English Dissent in the first half of the eighteenth century. (shrink)

The seventeenth century was one of scientific fervour and of fundamental change in how the natural world was to be approached. With increased voyages abroad, the world was being drawn into Europe and each country wanted to be the first to capture the ‘Codex Naturae’. French physician/naturalists were examining and dissecting nature and Jesuit missionaries were documenting day-to-day life of First Peoples in the New World. The interplay between an ethnogeography and a scientific knowledge including an environmentally orientated medical (...) geography illustrate the contrast of approaches to health, humanity, and place. (shrink)