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 Fraulein 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- 

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

 'On the Methods of Measuring very small Intervals of 



Time, and their Application to Physiological Purposes.' 



Lecture in KOnigsberg. (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 Ktfnigsberg ... 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 A tig. Monatsschr. 89 



'On the Nature of Human Perceptions.' Inaugural 

 Lecture 92 



'Theory of Compound Colours.' Poggend. Annal., 

 LXXXVI ; (trans.) Phil. Mag. [4], 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 



