A number of these references are mentioned in the discussion of specific 

 items. The Hst does not include thirty or forty present day publica- 

 tions relating to Henry's work, which were reviewed, from many of 

 which valuable suggestions were obtained as to where to look for source 

 material, but which were not themselves used as sources. 



Scientific Writings of Joseph Henry, published by the Smithsonian Institution, 1886. 



Experimental Researches in Electricity, by Michael Faraday, D.C.L., F.R.S., 1839. 



A Memorial of Joseph Henry, published by Order of Congress, 1880. 



Annual Report of the Smithsonian Institutiofi for 1857. 



Students' Notes on Henry's Princeton Lectures, MSS. in Princeton Library. 



The Electric Telegraph: Was It Invented hy Professor Wheatstone? , by William Fother- 



gill Cooke, London, 1857. 

 Historical Sketch of the Electric Telegraph, by Alexander Jones, New York, 1852. 

 A History of Electric Telegraphy to the Year 1837, by J. J. Fahie, London, 1884. 

 An Historical Sketch of Henry's Contribution to the Electro- Magnetic Telegraph, by 



William B. Taylor, 1879. 

 Joseph Henry and the Magnetic Telegraph: An Address, by Edward N. Dickerson, 



LL.D', 1885. 

 The Annals of Electricity, Magnetism, etc., by William Sturgeon, 1836-1843, London. 

 Scientific Memoirs, Edited by Richard Taylor, F.S.A., London, 1837-1852. 

 Electro- Magnetism, etc., by Jacob Green, M.D., Philadelphia, 1827. 

 Meteorological Essays by Francois Arago, London, 1855. 

 Glazebrook's Dictionary of Applied Physics. 



Annali delle Scienze del Regno Lombardo — Veneto, Padova, 1831-1834. 

 Nuovi Saggi della Imperiale Regia Accademia di Scienze Lettere ed Arti, in Padova, 



Vols. I-VI, 1817-1847. 

 American Journal of Science (Silliman's Journal), 1822 and 1827-1842. 

 Proceedings of American Philosophical Society, Vols. 1-3, and Vol. for 1744-1838. 

 Transactions of American Philosophical Society, Vols. VI-VIII (1834-1842). 

 Philosophical Transactions, London, 1831, 1832, 1834, 1835, and 1838. 

 Philosophical Magazine, London, 1803, 1804, 1828-1832 and 1834. 

 Edinburgh Philosophical Journal, 1825. 

 Edinburgh Journal of Science, 1830. 

 Annales de Chimie et de Physique, 1827. 

 Comptes Rendus, 1855. 



Royal Society Catalogue of Scientific Papers, 1800-1863. 

 Transactions of Royal Irish Academy, 1786-1886. 



Royal Dublin Society Catalogue of the Library, 1731-1839, by J. ¥. Jones. 

 British Museum Catalogue. 



22 



