1891.] ' [Ruschenberger. 



Philadelphia and its Causes." "The American Journal of the Medical 

 Sciences," November, 1827. 



" Medical Statistics, consisting of Estimates relating to the Population 

 of Philadelphia, with its Changes as Influenced by the Deaths and Births 

 during Ten Years, viz., from 1821 to 1830 inclusive." "The American 

 Journal of the Medical Sciences," November, 1831. 



'Vital Statistics of Philadelphia for the Decennial Period from 1830 

 to 1840." "The American Journal of the Medical Sciences," July, 

 1848. 



"Lecture on the Advantages Derived from Cultivating the Arts and 

 Sciences." By G. Emerson, M.D. Delivered before the Philadelphia Mer- 

 cantile Library Association, in the hall of the Musical Fund Society, De- 

 cember 8, 1839. Printed by A. Waldie, Philadelphia, 1840. 



"An Address delivered at Laurel Hill Cemetery on the Completion of a 

 Monument Erected to the Memory of Thomas Godfrey, June 1, 1843." 

 By G. Emerson, M.D. 



"The Farmer's Encyclopedia and Dictionary of Rural Affairs; em- 

 bracing all the most recent discoveries in agricultural chemistry, adapted 

 to the comprehension of unscientific readers, illustrated by numerous 

 engravings of animals, implements and other subjects interesting to the 

 agriculturist." By Cuthbert W. Johnson, Esq., F.R.S., Barrister-at 

 Law; Editor of the "Farmer's Almanac;" corresponding member of 

 the Agricultural Society of Edinburgh ; the Horticultural Society of Mary- 

 land, etc. Adapted to the United States, by Gouverneur Emerson. 8vo, 

 pp. 1173. Carey & Hart, Philadelphia, 1844. 



"Address delivered before the Society for Promoting Agriculture of 

 the County of Philadelphia, at their Annual Exhibition, at the Rising 

 Sun Tavern, October 6, 1848." By Gouverneur Emerson, M.D. Henry 

 C. Clark, Printer, Philadelphia, 1849. 



"An Address delivered before the Delaware Horticultural Society at 

 Wilmington, on the 24th of September, 1851." By Gouverneur Emerson, 

 M.D. 



"Report on the Agency of the Refrigeration Produced by Upward 

 Radiation of Heat as an Exciting Cause of Disease." " Transactions of 

 the American Medical Association," Vol. vi, 1853, pp. 139-152. 



"An Address delivered before the Agricultural Society of Chester County, 

 Pa., September 17, 1853." By Gouverneur Emerson, M.D. 



"An Address delivered before the Agricultural Society of New Castle 

 County, Del., at the Annual Exhibition held in Wilmington, September 

 12, 1855." By G. Emerson, M.D. 



"An Address delivered before the Agricultural Society of Kent County, 

 Del., October 15, 1857." By G. Emer&on, M.D., of Philadelphia. 



"Results of Extensive Experiments in the Use of Superphosphate of 

 Lime, etc., communicated to the Agricultural Society of Kent County, 

 Del." By Dr. G. Emerson, February 2, 1859. 



"Jourdan's Ammoniated Superphosphate of Lime ; its Nature and Uses ; 



