The knowledge of the heavens and the earth made easy: or, The first principles of astronomy and geography explain'd by the use of globes and maps: with a solution of the common problems by a plain scale and compasses as well as by the globe. Written several years since for the use of learners.

Edited by John Eames.

Guy's Elements of astronomy, and an abridgement of Keith's New treatise on the use of the globes.

"New American edition, with additions and improvements, and an explanation of the astronomical part of the American Almanac."

On the proofs of divine power and wisdom : derived from the study of astronomy; and on the evidence, doctrines, and precepts of revealed religion /

Mode of access: Internet.

A treatise on the first principles of astronomy and the use of the globes /

Mode of access: Internet.

The knowledge of the heavens and the earth made easy, or, The first principles of astronomy and geography explain'd by the use of globes and maps : with a solution of the common problems by a plain scale and compasses, as well as by the globe /

With privilege leaf (A₁).

A manual of spherical and practical astronomy : embracing the general problems of spherical astronomy, the special applications to nautical astronomy, and the theory and use of fixed and portable astronomical instruments, with an appendix on the method of least squares.

Mode of access: Internet.

Astronomy and general physics considered with reference to natural theology.

Bookplate of Luther Holden.

A treatise on trigonometry, plane and spherical : with its application to navigation and surveying, nautical and practical astronomy and geodesy, with logarithmic, trigonometrical, and nautical tables /

Mode of access: Internet.

A mathematical and philosophical dictionary: containing an explanation of the terms, and an account of the several subjects, comprized under the heads mathematics, astronomy, and philosophy both natural and experimental:

Mode of access: Internet.

A manual of spherical and practical astronomy, embracing the general problems of spherical astronomy, the special applications to nautical astronomy, and the theory and use of fixed and portable astronomical instruments,

Mode of access: Internet.

A manual of spherical and practical astronomy : embracing the general problems of spherical astronomy, the special applications to nautical astronomy, and the theory and use of fixed and portable astronomical instruments, with an appendix on the method of least squares.

Mode of access: Internet.

Greenwich observations in astronomy and magnetism made at the Royal Observatory, Greenwich, the Royal Greenwich Observatory, Herstmonceux and the Royal Greenwich Observatory, Abinger in the year ...

"Published by order of the Board of Admiralty in obedience to Her Majesty's command."

The student's assistant in astronomy and astrology : containing observations on the real and apparent motions of the superior planets, the geocentric longitude of the sun and superior planets ... also a discourse on the harmony of phrenology, astrology, and physiognomy /

Mode of access: Internet.

Galaxy threshing and ultra-compact dwarfs in the Fornax cluster

We have discovered a new type of galaxy in the Fornax Cluster: 'ultra-compact' dwarfs (UCDs). The UCDs are unresolved in ground-based imaging and have spectra typical of old stellar systems. Although the UCDs resemble overgrown globular clusters, based on VLT UVES echelle spectroscopy, they appear to be dynamically distinct systems with higher internal velocity dispersions and M/L ratios for a given luminosity than Milky Way or M31 globulars. Our preferred explanation for their origin is that they are the remnant nuclei of dwarf elliptical galaxies which have been tidally stripped, or 'threshed' by repeated encounters with the central cluster galaxy, NGC1399. If correct, then tidal stripping of nucleated dwarfs to form UCDs may, over a Hubble time, be an important source of the plentiful globular cluster population in the halo of NGC1399, and, by implication, other cD galaxies. In this picture, the dwarf elliptical halo contents, up to 99% of the original dwarf luminosity, contribute a significant fraction of the populations of intergalactic stars, globulars, and gas in galaxy clusters.