viii CONTENTS 



PAGE 



1848. ' Report on Work done on the Theory of Animal Heat 



in 1846.* Fortschr. d. Physik 59 



1849. ' Principles of Construction of a Tangent Galva- 

 nometer.* (Berlin Phys. Soc.) 59 



PROFESSOR OF PHYSIOLOGY AT KONIGSBERG, 1849-1855 . 61 



1849. Marriage with FrSulein Olga von Velten . . .61 



1850. ' Rate of Transmission of the Excitatory Process 

 in Nerve/ Berlin Monatsber., Comptes Rendus, XXX, 

 XXXIII . . 63 



' Measurements of the Time-Relations in the Contraction 

 of Animal Muscles, and Rate of Propagation of the Exci- 

 tatory Process in Nerve.' Mutter's Arch. ... 66 



'On the Methods of Measuring very small Intervals of 

 Xime, and their Application to Physiological Purposes/ 

 Lecture in Kftnigsberg. (Trans.) Phil. Mag. [4], VI . 69 



Discovery of the Ophthalmoscope. (Berlin Phys. Soc.) 73 



1851. Description of an Ophthalmoscope for the Investigation 



of the Retina in the Living Eye. (Berlin, Forster) . . 74 

 * On the Duration and Course of the Electrical Currents 



induced by Variation of an Inducing Current.' Berl. 



Monatsber., Poggend. Annal., LXXXIII .... 79 

 Appointed Ordinary Professor at Ko"nigsberg ... 88 



1852. ' Measurement of the Rate of Transmission of the 

 Excitatory Process in Nerve/ Part II. Mutter's 

 Arch 88 



'Results of Recent Discoveries in Animal Electricity/ 

 Kiel Allg. Monatsschr. 7" . . 89 



'On the Nature of Human Perceptions/ Inaugural 

 Lecture T~ .... 92 



'Theory of Compound Colours/ Poggend. Annal., 

 LXXXVI ; (trans.) Phil. Mag\\ IV .... 93 



'On Brewster's New Analysis of Solar Light.' Berl. 

 Monatsber., Poggend. Annal., LXXXIX; (trans.) Phil. 

 Mag. [4], IV . . 93 



' A Theorem of the Distribution of Electrical Currents in 

 Material Conductors/ Berl. Monatsber 99 



1853. ' On Some Laws of the Distribution of Electrical 

 Currents in Material Conductors with Application to 

 Experiments in Animal Electricity/ Poggend. Annal., 

 LXXXIX 99 



