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Larger Star Atlas, for the Library, in Twelve Circular Maps, with Introduction and 2 Index Plates.  By R.A.  PROCTOR, B.A.  Folio, 15_s._ or Maps only, 12_s._ 6_d._

Essays on Astronomy.  A Series of Papers on Planets and Meteors, the Sun and Sun-surrounding Space, Stars and Star Cloudlets.  By R.A.  PROCTOR, B.A.  With 10 Plates and 24 Woodcuts. 8vo. 12_s._

NATURAL HISTORY and PHYSICAL SCIENCE.

Ganot’s Elementary Treatise on Physics, Experimental and Applied, for the use of Colleges and Schools.  Translated by E. ATKINSON, Ph.  D. F.C.S.  Tenth Edition, revised and enlarged; with 4 Coloured Plates and 844 Woodcuts.  Large crown 8vo. 15_s._

Ganot’s Natural Philosophy for General Readers and Young Persons; a Course of Physics divested of Mathematical Formulae and expressed in the language of daily life.  Translated by E. ATKINSON, Ph.  D. F.C.S.  Fourth Edition, revised; with 2 Plates and 471 Woodcuts.  Crown 8vo. 7_s._ 6_d._

Professor Helmholtz’ Popular Lectures on Scientific Subjects.  Translated and edited by EDMUND ATKINSON, Ph.  D. F.C.S.  Professor of Chemistry &c.  Staff College, Sandhurst.  With a Preface by Professor TYNDALL, F.R.S. and 68 Woodcuts. 2 vols. crown 8vo. 15_s._ or separately, 7_s._ 6_d._ each.

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The Mathematical and other Tracts of the late James M’Cullagh, F.T.C.D.  Professor of Natural Philosophy in the University of Dublin.  Now first collected, and Edited by the Rev. J.H.  JELLETT, B.D. and the Rev. S. HAUGHTON, M.D.  Fellows of Trinity College, Dublin, 8vo. 15_s._

Elementary Treatise on the Wave-Theory of Light.  By H. LLOYD, D.D.  D.C L. &c. late Provost of Trinity College, Dublin. 8vo. price 10_s._ 6_d._

Fragments of Science.  By JOHN TYNDALL, F.R.S.  Sixth Edition, revised and augmented. 2 vols. crown 8vo. 16_s._

Heat a Mode of Motion.  By JOHN TYNDALL, F.R.S.  Sixth Edition (Thirteenth Thousand), thoroughly revised and enlarged.  Crown 8vo. 12_s._

Sound.  By JOHN TYNDALL, F.R.S.  Fourth Edition, including
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Essays on the Floating-Matter of the Air in relation to Putrefaction and Infection.  By JOHN TYNDALL, F.R.S.  With 24 Woodcuts.  Crown 8vo. 7_s._ 6_d._

Professor Tyndall’s Lectures on Light, delivered in America in 1872 and 1873.  With Portrait, Plate & Diagrams.  Crown 8vo. 7_s._ 6_d._