Reine und angewandte Chemie Die Entstehung einer neuen Wissenschaftskonzeption in der Chemie der Aufklärung

In its attempt to achieve acknowledgement and support as a true science and academic discipline eighteenth-century chemistry experienced that the traditional distinction between theory and practice, respectively between science and art, was an incriminating heritage and did not longer conform to the way chemists saw themselves. In order to substitute the former, socially judging classification into theoretical science and practical art, J. G. Wallerius from Uppsala coined the term pure and applied chemistry in 1751. The idea behind this new conception was that it ought to be chemistry's research aim and not the kind of work, be it manual or intellectual, which was to decide about its branches and their dignity. The change in orientation which took place during the eighteenth century, and which is symbolized by the new dichotomy “pure and applied”, led towards a revaluation of the utilitarian aspects of chemistry. Its historical roots reach back to a long and fruitful cooperation of, and interaction between chemistry and economy, which was reinforced by the Stahlian tradition in Germany and Scandinavia. Subsequently, it was its strong economic bias that helped chemistry to become institutionalized and accepted as an academic discipline distinct from the medico-pharmaceutical profession. The analysis of this change of attitudes, behaviour and institutional pattern suggests that, at least during the period of institutionalization of this particular discipline, social structures and the intrinsic scientific contents are so tightly interrelated, that any division into “internal”, cognitive developments (facts, theory and subject-matter) and “external” conditions (social context and stategies of institutionalization) would be artificial, since they both constitute the scientific community as a context of argumentation and action.     

Über deutsch‐ungarische Beziehungen der Medizin im Zeitalter der Aufklärung ‐ zugleich ein Beitrag zur Geschichte der Pestinokulation

The influence of German science and medicine on the development of Hungarian medicine in the age of Enlightenment has been extraordinary strong. Many Hungarian medical students staid in German medical faculties. The medical interrelationships between Germany and Hungary in the 18^th century are discussed in an overview according to following dimensions: education of protestant Hungarian medical students at German »Aufklaerungs‐Universitaeten«, practical and theoretical resonance, membership of scientific societies, personal contacts and correspondence. Outstanding personalities of this aera were Daniel Fischer, István Weszprémi, Abraham Vater. Special attention is given to a new idea: inoculation against plague as first described by A. Vater in his work Blattern‐Beltzen (1721). Thirty years later I. Weszprémi published his original conception ‐ independently from Vater ‐ in the Tentamen de inoculanda peste (1755).     

Über die Aufhänge- und Anzeigevorrichtung der ägyptischen Waage der Pharaonenzeit

A number of different and partly contradictory interpretations about the suspension and the indicator system of the ancient Egyptian balance has been given so far. In this article previous explanations of these devices are presented and critically considered; at the same time the balance of the Egyptians is included in the complete evolution of this instrument. Based on original Egyptian colour drawings on papyrus taken from the Book of the Death and considering weighing techniques, it is stated that all interpretations given so far are not capable of providing a satisfactory explanation of the function of these devices. The interpretation given already in 1888 by Sir Flinders Petrie comes closest to the real function of the indicator system: According to his assumption the device consisted of a solid pointer attached to the beam, in relation to which a plumbline was observed after the oscillations had stopped. This interpretation, however, has to be varied or to be complemented by taking into consideration the special drawing technique of the ancient Egyptians: Processes were drawn in a reproduction technique which consisted in the simultaneous combination of a top view and a side view. A new hypotheses about the function of the suspension and the indicator system of the ancient Egyptian balance is presented, which has the advantage of agreeing completely with the Egyptian drawing technique and which, in addition, ensures optimum precision of the weighing procedure.     

Verzeitlichungs- und Historisierungstendenzen in der frühen Geologie und Paläontologie

Steno described in 1669 geological sections which were interpreted as the result of a series of earlier events. Steno used actuogeological methods. This was the first step towards temporalizing nature. Steno was succeeded by a lot of other researchers from different European countries. It is amazing to see, that “actualism” was widespread during the 18th century. The next step was the discovery that fossils are extinct beings (Ray, Hooke and others). Using methods of comparing anatomy W. Hunter (forerunner of Cuvier) could prove in 1769 that the Mastodon is an extinct vertebrate. The work of Soulavie in France (1780) is stressed. He held in his hand the key for solving the problem of index-fossils. About 1800 the importance of fossils for stratigraphy and describing a history of the earth was recognized. Theories and hypotheses were needed to explain the fossil documents (strange shells in older strata and higher developed mammals in younger strata). All these theories couldn't propose a feasible mechanism for the change of beings during the history of the earth. But it could be said, that all fossils proove a history of life and the earth i. e. a progressive development in one sense, a development which is not reversible.     

Dualistische Entwürfe zur Einheit der Naturphänomene und die Anfänge der Romantischen Naturphilosophie

The importance of German Naturphilosophie for the development of a unified view of nature is often emphasized. The search for ultimate unity of natural phenomena, however, was already too common among physicists of the waning 18th century to ascribe its popularity to the influence of philosophers. To avoid the plethora of imponderable fluids, many ?atomists”? reduced electric, magnetic, thermal, and chemical phenomena to a dualism of contrary principles, thereby prefiguring the ?dynamic”? ideas of romantic Naturphilosophen. In particular we show how Schelling's early account of his Naturphilosophie was shaped by J. A. Deluc's atomistic theory of gases and vapours.     

Kleinstadt und Bibliothek in der Frühmoderne. Zu Genese und Struktur der Ratsbibliothek der fränkischen Reichsstadt Weißenburg

Small town and library in early modern times: Even small German imperial towns in particular were unable to conduct their daily business without maintaining a library with a wide range of excellent and usefull books suitable for employment by the judiciary, the administration, the health-care services, the church and school system as well as for supporting the interests of the town effectively. It is clear that the municipial council placed high value on the acquisition of the most important works in the field of law, theology and literature treated in school considering the relatively rational manner in which the “Ratsbibliothek” (library of the council) of the imperial town of Weißenburg (Bavaria) took stock of its books in the early modern times (16th to 18th century): this can be seen in the contemporary cataloguing (1600/1745/1829) of the library. Since the library orientated itself pragmatically towards the administrative interests of the town, there was hardly any inclination towards the acquisition of works in the fields of philosophy or poetry. — This study is based on the first edition of the “Beringer-catalogue” included (1600).     

Der medizinische Wissensaustausch zwischen Siebenbürgen und anderen europäischen Ländern im Spiegel des Auslandsstudiums und der ärztlichen Ausbildung der Siebenbürger vor der Gründung der Klausenburger Universität (1872)

The first perpetual university in Transylvania was founded rather late compared to European standards, namely only in 1872 in Klausenburg (Cluj, Kolozsvár). Through the centuries, the social request for physicians was satisfied by the education of Transylvanian students at foreign universities and by the immigration of physicians from abroad. Concerning the period from 1180 to 1849, we know about 7145 Transylvanian students at more than 80 different universities of the Occident. Thereof, 412 physicians and 219 surgeons can be documented by their names. The ranking list of the most frequented medical faculties (Vienna, Padova, Leyden, Utrecht, Jena, Lipsia, Erlangen, Frankfort‐on‐Oder, Goettingen, Basel etc.) proves that all of these medical men received their professional education (being sponsored socially) from the then most excellent foreign universities. Thus, studies abroad guaranteed continual transfer of knowledge from Western to Eastern Europe. This situation seems to partially have compensated the disadvantages of lacking own Transylvanian universities ‐ at least from the quality point of view, so that the professional standard of the education of doctors working in Transylvania used to correspond to the highest level of European medicine.