SUPPLEMEII^T. 



Note A. 



Page. 



Henry's first experiments 375 



Note B. 

 "Intensity" and "quantity" currents 376 



Note C. 

 The electro-magnetic telegraph •. 330 



Note D. 

 Henry's multiple-coil magnet 390 



Note E. 

 Abstract of paper on self-induction 394 



Note F. 

 Oscillation of electrical discharge 396 



Note G. 

 Wheatstone's chronoscope 398 



Note H. 

 Henry's " programme of organization" 399 



Note I. 

 Election of the first " secretary " 406 



Note J. 

 Henry's purpose of administration 409 



Note K. ' 

 Struggle with the library scheme 410 



Note L. 

 Distribution of museum material 418 



Note M. 

 Overflowing condition of the museum 419 



Note N. 



Investigation of illuminants 421 



(375) 



