XXXVI 



was communicated to the Royal Society. It was on Induction : Induction 

 an action of contiguous particles ; absolute charge of Matter ; Electrometer 

 and Inductive Apparatus employed ; Induction in Curved Lines ; Specific 

 Inductive Capacity ; general results as to Induction. 



His work for the Trinity House consisted in examining the Trinity lamp, 

 the French lamp, and the Bude lamp, as to intensity of light and price : 

 " pressed Mr. Gurney, by letter, to give us his best lamp at once and not to 

 lose time." Two of his four Friday discourses were on the views of Pro- 

 fessor Mossotti as to one general law accounting for the different Forces in 

 Matter; on Dr. Marshall Hall's views of the Nervous System. 



He was elected Honorary Member of the Literary and Scientific Institu- 

 tion, Liverpool. 



Mt. 46 (1838). 



The twelfth series of Researches was published this year. — On Induction 

 (continued) : Conduction or Conductive Discharge ; Electrolytic Discharge; 

 Disruptive Discharge, Insulation, Spark, Brush, Difference of Discharge at 

 the positive and negative surfaces of conductors. The thirteenth series was 

 also on Induction (continued) : Disruptive Discharge (continued). Pecu- 

 liarities of positive and negative discharge either as spark or brush ; Glow 

 Discharge ; Dark Discharge. Convection or Carrying Discharge. Relation 

 of a vacuum to Electrical Phenomena. Nature of the Electrical Current. 

 The fourteenth series was on the nature of the Electric Force or Forces. 

 Relation of the Electric and Magnetic Forces, and notes on Electrical Exci- 

 tation. The fifteenth series was a notice of the character and direction of 

 the Electric Force of the Gymnotus. 



For the Trinity House he a second time reported on the new Gurney 

 lamp, comparing it in light and cost with the French lamp. 



He gave four Friday discourses this year. 



He was made Honorary Member of the Institution of Civil Engineers ; 

 Foreign Member of the Royal Academy of Sciences, Stockholm ; and he 

 received the Copley Medal. 



Mt. 4/ (1839). 



At the end of July he was four days at Orfordness for the Trinity House, 

 measuring and comparing at sea and on land the Argand lamp, the French 

 Lamp, and the Bude lamp. 



He gave four Friday discourses, two of which were on the Electric powers 

 of the Gymnotus and Silurus. An account of Gurney' s oxv-oil-lamp. 



During thirteen years, Miss Reid, a niece of Mrs. Faraday s, had lived at 

 the Institution, and she has thus given her recollections of Mr. Faraday 

 during these and the following six years : — 



*.* There could be very few regular lessons at the Institution ; there were 

 so many breaks and interruptions. Sometimes my uncle would give me a 

 few sums to do, and he always tried to make me understand the why and 

 wherefore of everything I did. Then occasionally he gave me a reading- 

 lesson. How patient he was, and how often he went over and over the 



