Frederick Slare

Frederick Slare was an English physician and chemist active in the late 17th and early 18th centuries, noted for his experimental work on chemical substances, public health advocacy, and participation in scientific debates of his era. He practiced in London, engaged with contemporaries across the Royal Society, and published pamphlets and papers that intersected with the interests of physicians, apothecaries, and experimental natural philosophers. Slare’s career connected him to a network of figures in St Bartholomew's Hospital, Royal Society, and the emerging pharmaceutical and chemical communities in London and Birmingham.

Early life and education

Slare was born circa 1659 into a family with mercantile and provincial connections, receiving early schooling typical of the period before pursuing medical training in London. He studied at institutions associated with clinical practice near St Bartholomew's Hospital and likely apprenticed with established practitioners in the City of London, acquiring knowledge that bridged bedside medicine and experimental chemistry. During his formative years he encountered writings and practitioners linked to William Harvey, Thomas Sydenham, and the chemical traditions stemming from Paracelsus and the Iatrochemistry school, positioning him amid debates between Galenic physicians and chemical physicians allied with apothecaries and experimentalists.

Medical career and practice

As a practicing physician, Slare served patients in central London and maintained professional ties to municipal and private infirmaries, interacting with physicians associated with Guy's Hospital and practitioners frequenting Lloyd's Coffee House. His clinical interests included febrile diseases, putrefaction, and surgical complaints treated by colleagues from St Thomas's Hospital and provincial county infirmaries. Slare’s practice overlapped with figures such as John Radcliffe, Thomas Sydenham, and Francis Glisson in debates over clinical method and therapeutic efficacy. He corresponded with apothecaries and surgeons in locations like Birmingham and Bristol, exchanging remedies and observations about the use of salts, acids, and mineral preparations in treatments adopted across English towns and parishes.

Chemical research and contributions

Slare conducted experiments on chemical substances including acids, alkalies, mineral salts, and animal products, exploring processes like calcination, distillation, and putrefaction familiar to practitioners in Oxford and Cambridge laboratories. He published empirical observations on the preparation and properties of salts and on the effects of various mineral waters comparable to studies by contemporaries in Paris and Leiden. His chemical work engaged methods championed by Robert Boyle, Isaac Newton’s experimental correspondents, and followers of Jan Baptista van Helmont, incorporating glassware and retorts common to experimentalists in The Hague and Hamburg. Slare investigated substances such as saltpetre, vitriol, and ammoniacal compounds, often debating analytical conclusions with chemists in Amsterdam and physicians in Edinburgh.

Royal Society and scientific network

An active member of the London scientific community, Slare participated in meetings and corresponded with fellows of the Royal Society including experimentalists aligned with Robert Hooke, Edmund Halley, and Hans Sloane. Through the Society he interfaced with collectors and natural historians from institutions like the Ashmolean Museum and patrons from the courts of William III and Queen Anne. Slare’s network extended to colonial correspondents in Jamaica and merchants trading through Liverpool and Bristol, who supplied botanical and mineral specimens. He exchanged letters and specimens with chemists in Leiden University, naturalists at the British Museum precursor collections, and surgeons affiliated with the Surgeons' Company.

Public controversies and pamphlets

Slare engaged in public controversies typical of early-modern science, publishing pamphlets that contested views held by apothecaries, chemists, and physicians on issues such as the nature of putrefaction, the efficacy of so-called mineral remedies, and the therapeutic use of acids and alkalis. His polemical writings entered disputes touched by figures of the period like John Woodward and commentators associated with The Gentleman's Magazine and the periodical press. These pamphlets were debated in coffeehouses such as Jonathan's Coffee-House and in pamphlet exchanges involving members of the Physicians' College and provincial medical societies in York and Bath. Slare’s public interventions mirrored broader controversies about experimental evidence, professional authority, and the boundaries between surgical, apothecary, and physician practices that preoccupied metropolitan and provincial audiences.

Personal life and legacy

In private life Slare maintained connections with merchant and gentry families, participating in philanthropic and charitable initiatives that intersected with hospital patronage in London and county benevolence in Surrey and Kent. His legacy is reflected in preserved experimental notes, pamphlets, and the influence his chemical and hygienic recommendations exerted on contemporaries who wrote treatises on salines, mineral waters, and the prevention of putrefaction. Slare’s name appears in correspondence and minute books among the archives of the Royal Society, hospital records of St Bartholomew's Hospital, and collections assembled by collectors such as Hans Sloane, ensuring that his contributions to early modern English medicine and chemistry were recorded alongside those of his better known contemporaries. Category:17th-century English physicians Category:18th-century English physicians