A letter to the Reverend Thomas Beynon, ... /

Mode of access: Internet.

Discourses and dissertations on the scriptural doctrines of atonement and sacrifice : and on the principal arguments advanced, and the mode of reasoning employed, by the opponents of those doctrines as held by the established church : with an appendix containing some structures on Belsham's account of the unitarian scheme, in his review of Wilberforce's treatise /

Index included in The principles of physiology ... by Andrew Combe.

The history of Massachusetts : from the first settlement thereof in 1628, until the year 1750 /

Vol. 3 has title: The history of the Province of Massachusetts Bay, from the year 1750, until June, 1774.

The speeches of the Hon. Thomas Erskine (now Lord Erskine), when at the bar, on subjects connected with the liberty of the press, and against constructive treasons.

Mode of access: Internet.

Historical papers relating to the Jacobite period, 1699-1750.

Appended to v. 2: "New Spalding club. Ninth report, 1895" (15 p.)

Memoir, correspondence, and miscellanies, from the papers of Thomas Jefferson.

Another edition published same year in London.

Sir Thomas More:

Mode of access: Internet.

Narrative of the massacre, by the savages, of the wife & children of Thomas Baldwin : who, since the melancholy period of the destruction of his unfortunate family, has dwelt entirely alone, in a hut of his own construction, secluded from human society, in the extreme western part of the state of Kentucky.

Ayer Coll.

Social and economic aspects of Swedish population movements, 1750-1933,

Mode of access: Internet.

Pieni Kempi, eli, Lyhykäiset opetukset ja rukoukset pienille ja yksinkertaisille kokoon kouttu Thomas Kempin pienistä kirjoista. Lisäksi otettu wiisi sangen merkillistä lukua Johan Arndin Totisesta christillisyydestä

Pippingin mukaan suomentanut Henr. Renqvist. - Laineen mukaan kustantaja todennäköisesti Henrik Renqvist.

Thomas Young’s investigations in gradient-index optics

Purpose: James Clerk Maxwell is usually recognized as being the first, in 1854, to consider using inhomogeneous media in optical systems. However, some fifty years earlier Thomas Young, stimulated by his interest in the optics of the eye and accommodation, had already modeled some applications of gradient-index optics. These applications included using an axial gradient to provide spherical aberration-free optics and a spherical gradient to describe the optics of the atmosphere and the eye lens. We evaluated Young’s contributions. Method: We attempted to derive Young’s equations for axial and spherical refractive index gradients. Raytracing was used to confirm accuracy of formula. Results: We did not confirm Young’s equation for the axial gradient to provide aberration-free optics, but derived a slightly different equation. We confirmed the correctness of his equations for deviation of rays in a spherical gradient index and for the focal length of a lens with a nucleus of fixed index surrounded by a cortex of reducing index towards the edge. Young claimed that the equation for focal length applied to a lens with part of the constant index nucleus of the sphere removed, such that the loss of focal length was a quarter of the thickness removed, but this is not strictly correct. Conclusion: Young’s theoretical work in gradient-index optics received no acknowledgement from either his contemporaries or later authors. While his model of the eye lens is not an accurate physiological description of the human lens, with the index reducing least quickly at the edge, it represented a bold attempt to approximate the characteristics of the lens. Thomas Young’s work deserves wider recognition.

David M. Thomas : a party disguised as work or work disguised as a party

This article discusses David M. Thomas' 2012 exhibition at Boxcopy. Thomas' exhibition conflates the space of the studio with that of the gallery. In doing so, he draws out complex relationships between production and presentation, subjectivity and sociality. This article focuses on these aspects of Thomas' creative exploration of identity and its mutability through art making.