APPENDIX. 209 



PHIPSON. " Sur une espece particuliere de mucilage animale :" 

 Journ. de Medecine et de Pharm. de Bruxelles, 1855. De la 

 Phosphorescence en general et des Insectes phosphoriqiies. 

 Bruxelles and Paris, 1858. Abridg. ed. in German, published 

 at Berlin, 1858, by Dr. Miiller. On some new cases of Phos- 

 phorescence by Heat, in Comptes-Rendus de TAcad. des Sc. de 

 Paris, February, 1860. Recfierches nouvelles sur le Phosphore. 

 Brussels, 1856. La Force Catalytique, ^Etudes sur les PMno- 

 mtnesde Contact. Me moire couronne par la Societe Hollan- 

 daise des Sciences, Harlem. 1858. Sur la Matiere Phospho- 

 rescente de la Raie : Comptes-Rendus, 1860. 



NIEPCE DE ST. VICTOR. O n a new Action of Light. Many papers 

 in Comptes-Rendus de VAcad. des Sc. Paris, from 1857 to 

 1858. 



BECQTTEEEL (Edmond). On Phosphorescence after Insolation : 

 Ann. de Chim., January, 1859, and some papers on the same 

 subject in Comptes-Rendus since the date just given. On the 

 Phosphorescence of Gases : Comptes-Rendus deVAcad. des Sc. 

 Paris, 1859. 



WAKTMANHT. On a Luminous Fog at Geneva : Comptes-Rendus, 

 December, 1859. 

 The names of other authors have been given in the present 



work. 



Note. It has been observed that Calamine (hydrated silicate 

 of zinc), when heated, becomes electric and phosphorescent at the 

 same time ; and tins will doiibtless be found to be the case 

 with many other mineral substances which exhibit phosphores- 

 cence. 



The mineral called Wollastonite (silicate of lime) become? 

 phosphorescent by friction. 



My attention has lately been called to the fact that ice and 

 snoiu are phosphorescent after insolation. Although I have 

 not had an opportunity of witnessing it myself, I find that 

 Placidus Heinrich was acquainted with the phenomenon ; he 



P 



