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._

Professor Tyndall's Lessons in Electricity at the Royal Institution,
1875-6. With 58 Woodcuts. Crown 8vo. 2_s._ 6_d._

Professor Tyndall's Notes of a Course of Seven Lectures on Electrical
Phenomena and Theories, delivered at the Royal Institution. Crown 8vo.
1_s._ sewed, 1_s._ 6_d._ cloth.

Professor Tyndall's Notes of a Course of Nine Lectures on Light,
delivered at the Royal Institution. Crown 8vo. 1_s._ sewed, 1_s._ 6_d._
cloth.

Six Lectures on Physical Geography, delivered in 1876, with some
Additions. By the Rev. SAMUEL HAUGHTON, F.R.S. M.D. D.C.L. With
23 Diagrams. 8vo. 15_s._

An Introduction to the Systematic Zoology and Morphology of Vertebrate
Animals. By A. MACALISTER, M.D. With 28 Diagrams. 8vo. 10_s._
6_d._

Text-Books of Science, Mechanical and Physical, adapted for the use of
Artisans and of Students in Public and Science Schools. Small 8vo. with
Woodcuts, &c.

Abney's Photography, 3_s._ 6_d._

Anderson's (Sir John) Strength of Materials, 3_s._ 6_d._

Armstrong's Organic Chemistry, 3_s._ 6_d._

Ball's Elements of Astronomy, 6_s._

Barry's Railway Appliances, 3_s._ 6_d._

Bauerman's Systematic Mineralogy, 6_s._

Bloxam's Metals, 3_s._ 6_d._

Goodeve's Mechanics, 3_s._ 6_d._

Gore's Electro-Metallurgy, 6_s._

Griffin's Algebra & Trigonometry, 3_s._ 6_d._

Jenkin's Electricity & Magnetism, 3_s._ 6_d._

Maxwell's Theory of Heat, 3_s._ 6_d._

Merrifield's Technical Arithmetic, 3_s._ 6_d._

Miller's Inorganic Chemistry, 3_s._ 6_d._

Preece & Sivewright's Telegraphy, 3_s._ 6_d._

Rutley's Study of Rocks, 4_s._ 6_d._

Shelley's Workshop Appliances, 3_s._ 6_d._

Thome's Structural and Physiological Botany, 6_s._

Thorpe's Quantitative Analysis, 4_s._ 6_d._

Thorpe & Muir's Qualitative Analysis, 3_s._ 6_d._

Tilden's Chemical Philosophy, 3_s._ 6_d._

Unwin's Machine Design, 3_s._ 6_d._

Watson's Plane & Solid Geometry, 3_s._ 6_d._

The Comparative Anatomy and Physiology of the Vertebrate Animals. By
RICHARD OWEN, F.R.S. With 1,472 Woodcuts. 3 vols. 8vo. L3.
13_s._ 6_d._

Homes without Hands; a Description of the Habitations of Animals,
classed according to their Principle of Construction. By the Rev. J.G.