378 EULOGY ON PROFESSOR ALEXANDER DALLAS BACHE. 



1839 — Nov. Simultaneous magnetic observations, made in correspondence with Pro- 

 fessor Lloyd of Dublin. Proc. B. Irish Acad., i, 462 ; Amer. Joum. Sci., 

 xli, 212. 



1840 — Mar. Observations of the magnetic intensity at twenty-one stations in Europe. 

 Trans. Amer. Phil. Soc, vii, 75 ; Proc. Amer. Phil. Soc, i, 185. 



1840 — Nov. Determination of the magnetic dip at Philadelpbia and Baltimore. 

 Proc. Amer. Phil. Soc, i, 294. 



1840 — Dec. On an instrument for measuring the changes in the vertical compo- 

 nent of the force of terrestrial magnetism Proc. Amer. Phil. Soc, i, 311 



1841 — May. Diagram of the direction and force of the wind, and amount and rate of 

 rain-fall during the severe gust of April 2, 1841. Proc. Amer. Phil. Soc, 

 ii, 56. 



1841 — July. On observations of the magnetic dip, made at Baltimore by Mr. Nicollet 

 and Major Graham. Proc Amer. Phil. Soc, ii, 83. 



1841 — Nov. Account of the formation of cumulus cloud from the action of a fire. 

 Proc Amer. Phil. Soc, ii, 116. 



1842 — Mar. Semi-annual report of the principal of the High School, and report to the 

 controllers of the public schools. Twenty-fourth Annual Beport of Con- 

 trollers of Public Schools of Philadelphia, pp. 23, 50. 



1842 — April. On the application of the self-registering rain-gauge to registering the 

 fall of snow. Proc. Amer. Phil. Soc, ii, 164. 



1842 — July. Report of the principal of the Central High School for the year ending 

 July, 1842. 8vo. pp. 120. Philadelphia. 



1842 — Oct. Address delivered at the close of the twelfth exhibition of American 

 manufactures, held by the Franklin Institute. 



1842 — Dec. On a modification of Lloyd's induction inclinometer. Proc. Amer. Phil. 

 Soc,ii,2?S7. 



1843 — Jan. On a new dew-point hygrometer. Proc Amer. Phil. Soc, ii, 249. 



1843 — May. Results of two years' observations of the magnetic elements, and of the 

 temperature, pressure, and moisture of the atmosphere at the magnetic 

 observatory of Girard College. Proc. Amer. Phil. Soc, iii, 90. 



1843 — May. Account of an instrument for determining the conducting power of 

 bodies for heat. Proc Amer. Phil. Soc, iii, 132. 



1843— May. Account of observations at Philadelphia and Toronto, during the mag- 

 netic disturbance of May 6, 1843, and their bearing upon the question 

 of the kind of instruments and observations appropriate to determine 

 such phenomena. Proc Amer. Phil. Soc, iii, 175. 



1845 — Feb. Report to the Treasury Department on the progress of construction of 

 standard weights and measures. Senate Doc. 149, 23th Congress, 2d 

 Session. 



1847 — Dec. Description of a new base apparatus used in the United States Coast 

 Survey. Proc. Amer. Phil. Soc, iv, 368. 



1848 — Dec. On a new method of observing transits. Monthly Not. B. Astr. Soc, is, 

 123 ; Bull. Acad. Sci., Brussels, xvi, 313 ; Astr. Nachr., xxviii, 273. 



1849 — Aug. Comparison of the results obtained in geodesy by the application of the 

 theory of least squares. Proc. Amer. Assoc. Adv. Sci., Cambridge, 1849, 

 p. 102. 



1849— Aug. On the progress of the survey of the coast of the United States. Proc 

 Amer. Assoc, Cambridge, 1849, p. 162. 



1850 — Mar. Notes on the results of observations of the direction and force of the 

 wind at the Coast Survey stations at Mobile Point and at Cat Island, 

 Gulf of Mexico. Proc. Amer. Assoc, Charleston, 1850, p. 50. 



1850 — Mar. Abstract of a communication on the recent progress of the telegraphic 

 operations of the United States Coast Survey. Proc Amer. Assoc, 

 Charleston, 1850, p. 122. 



