136 



On the generation of clouds by aetinie aetiou, and the reaction Ol .such clouds lipon light. Cambridge, Phil. 



Soc. Proceed. II, 1869, p. 136—140. 

 On a cometary theory. Phil. Mag. XXXVII, 1869, p. 241—245. Annales de Chimie XVIII, 1869, 



p. 494— 496. Archives Scienc. Phys. Nat. XXXV, 1869, p. 5 — 12. Contributions to Molecular 



Physics, p. 441—444. 

 On chemical rays and the light of the .sky. Roy. Inst. Proceed. V, 1869, p. 429 — 450. 

 On the aetion of rays of high reßrangibility upon gaseous matter. [1869.] Phil. Trans. CLX, 1870, 



p. 333—366. 

 Notes of a course of nine leetures on light, delivered at the Royal Institution of Great Britain, 1869. 



London 1870. 8". (13 Aufl.) 

 Notes of a Course of Seven Leetures on electrical Phenomena and Theories, delivered at the Royal Institution 



of Üreat Britain, 1870. London 1870. 12°. (New Edition.) 

 Researches on Diamagnetism and Magneerystallic-aetion ; iiicluding the Question of Diamagnetie Polarity. 



London 1870. 8°. (New Edition 1872.) Chemist II, 1850 — 51, p. 487— 490. Brit. Assoc. Rep. 



1851 (pt. 2), p. 15—18. Philos. Mag. II, 1851, p. 165—188. Poggend. Ann. LXXXIII, 1851, 



p. 1—37. Annales de Chimie XXXVII, 1853, p. 76 --79. 

 On dust and disease. [1870.] Roy. Inst, Proceed. VI, 1872, p. 1 — 14. 

 On floating matter and beams of light, Nature I, 1870, p. 499 — 501. 

 On the colour of the Lake of Geneva and the Mediterranean Sea. Nature II, 1870, p. 488—489. Archives 



Scienc. Phys. Nat. XXXIX, 1870, p. 343—351. Les Mondes XXIV, 1871, p. 703—709. 

 On the polarization of heat. Phil. Mag. XXXIX, 1870, p. 280—282. Annales de Chimie XXIII, 1871, p. 68—69. 

 Frao-ments of Science for unscientific people. A Series of Detaehed Essays, Addresses and Reviews. 



London 1871. (7 Auflagen.) 2 voll. 8°. 

 Vol. I (The optical condition of the Atmosphere, in its bearing on putrefaction and infection) enthalt 



folgende Abhandlungen : 



1) The Constitution of Nature. 1865. 



2) Radiation. 1865. 



3) On Radiant Heat in Relation to the Colour and 



Chemical Constitution of Bodies. 1866. 



4) New Chemical Reactions produced by Light. 



5) On Dust and Disease. 1870. 



6) Voyage to Algeria to observe the Eclipse. 1870. 



(Auch in : Hours of exercise in the Alps. ' 



7) Niagara. 1872. 



8) The Parallel Roads of Glen Roy. 



9) Alpine Sculpture. 



10) Recent Experiments on Fog-Signals. 



11) On the Study of Physics. 



12) On Crystalline and Slaty Cleavage. 



13) On Paramagnetic and Diamagnetie Forces. 



14) Physical Basis of Solar Chemistry. 



15) Elernentary Magnetism. 



16) On Force. 



17) Contributions to Molecular Physics. 



18) Life and Letters of Faraday. 1870. 

 191 The Copley Medalist of 1870. 



20) The Copley Medalist of 1871. 



21) Death by Lightning. 



22) Science and the Spirits. 



Vol. LI enthält (ausser der New Litroduction, embracing reflections on materialism) folgende Abhandlungen : 



1) Reflections on Prayer and Natural Law. 



2) Miracles and Special Providences. 1867. 



3) On Prayer as a Form of Physical Energy. 1872. 



4) Vitality. 1865. 



5) Matter and Force. 



6) Scientific Materialisrn. 1868. 



7) An Address to Students. 



8) Scientific Use of the Imagination. 1870. 



9) The Belfast Address. 1874. 



10) Apology for the Belfast Address. 



11) The Rev. James Martineau and the Belfast Address. 



12) Fermentation and its Bearings on Surgery and 



Medicine. 1877. 



13) Spontaneous Generation. 



14) Science and Man. 



15) Professor Virchow and Evolution. 



16) The Electric Light, 



17) Letter froni the „Times" of Novembre 9, 1874. 



Fragmente aus den Naturwissenschaften. Vorlesungen und Aufsätze. Uebersetzt von A. H. Mit Vorwort 



und Zusätzen von H. Helmholtz. Mit in den Text gedruckten Holzschnitten. Braunschweig 1874. 



XXVIII, 598 S. Fr. Vieweg & Sohn. 8°. 

 Hours of exercise in the Alps. London 1871. 2. Ed. 1872. 8°. 

 In den Alpen. Autorisirte deutsche Ausgabe. Mit einem Vorwort von Gustav Wiedemann. Braunschweig, 



Druck und Verlag von Friedrich Vieweg & Sohn. 1872. XVI und 420 S. 8°. 

 On the colour of water, and on the scattering of light in water and in air. [1871.] Boy. Inst, Proceed. 



VI, 1872, p. 189 — 199. 

 On dust and smoke. [1871.) Roy. Inst. Proceed. VI, 1872, p. 365 — 376. 



Rotation du plan de polarisation des rayons de chaleur obseure. Journal de Physique I, 1872, p. 101 — 102. 

 Aqueous Vapour: Discussion resumed. Contributions to Molecular Physics, p. 378—401. 

 Contributions to Molecular Physics in the Domain of Radiant Heat. A Series of Memoirs published in the 



„Philosophical Transactions" and „Philosophical Magazine", with Additions. London 1872. Long- 



mans, Green & Cie. 8°. XIV, 446 p. 2 Tat'. 



