EDWARD FRANKLAND, 



Professor Royal Institution from 1863 to 1868. 



Synthesis of Acids of the Lactic Series. Mercury-methyl, Mercury-ethyl, and 

 Mercury-amyl. Transformation of Organo- Mercury Compounds into Organo-Zinc 

 Compounds. Combustion of Iron in Compressed Oxygen. Synthesis of Acids of 

 the Acrylic Series. Synthesis of Fatty Acids. New Organic Radical Oxatyl. 

 The Source of Muscular Power. Potential Energy in ^various kinds of Food. 

 Source of Light in Flame. Effect of Pressure upon Luminosity of Flame. 



WILLIAM ODLING, 



Professor Royal Institution from 1868 to 1873. 



The Simplest Organic Compounds. Ammonia Compounds of Platinum. 

 Manufacture of Chlorine. Iridium. Ozone. Evaporation and Diffusion. 



Historical Apparatus of Faraday in the Royal Institution 



JOHN TYNDALL, 



Professor Royal Institution from 1853 to 1887; Honorary Professor from 



1887 to 1893. 



Transmission of Heat through Organic Substances. Vibrations due to Con- 

 tact of Bodies at Different Temperatures. Researches on Diamagnetic Force. 

 Slaty Cleavage. Physical Properties of Ice and Glaciers. Absorption and 



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