Charles Tliomas Jackson. — Woodworth. 93 
1848. 
Amer. Jour. Sci., v, 1848. 
Translation of a tribute paid to American geologists by M. L. Elie de 
Beaumont, in Lemons de Geologie Pratique, pp. 137-138. 
Translation of a circular addressed to C. T. J., as president of Assoc. 
Amer. Gaol, and Nat., in regard to a statue of Geoffrey St. Hilaire, pp. 
138-139. 
Ibid . , vi, 1848. 
Discovery of Tellurium in Virginia, p. 88. From auriferous vein in 
Whitehall, near Fredericksburg. 
A new method of extracting pure gold from alloys and from ores, p. 
187. Oxalic acid and carbonate of potash method. Also in Edinh. 
New Phil. Jour., xlvi, 1849, 1G4-16G. 
Froc. Boston Soc. Nat. Hist., Hi, 18,51. 
Remarks on Prof. Hare's experiments on tire-flies, p. 8. 
Remarks on metamorphosed rocks, pp. 19-20. Did not regard water in 
minerals as proof that they were not of igneous origin. 
Observations upon the drift scratches on the Roxbury conglomerate, 
p. 28. Fracture of the pebbles runs N. 30 degrees E. 
Notes on the solubility of gun cotton, p. 30. 
Remarks on a zeolite mineral from lake Superior, pp. 76-77. 
1849. 
Amer. Jour. Sci., vii, 1849. 
Copper of the lake Superior region. (A letter to the editor), pp. 286- 
287. Notes a 50-ton lump of cwpper. "Those who were surprised that 
I recommended working mines for native copper should come and see 
and they would believe." 
Proe. Boston Soc. Nat. Hi.st., Hi, 18.')1. 
Observations on an oyster bank near Newcastle, Me., p. 88. 
Remarks on the relative age of the American continent, p. 88. Con- 
sidered oldest on account of the granite showing marks of greater age. 
Remarks on gold ore from Virginia, p. 122. First report of Tellurium 
and Silenium in America. 
Remarks on the structure of ice and glaciers, pp. 124, 126. 
Remarks on fissures in puddingstone of Roxbury, p. 127. If due to 
contraction, peVjbles should dropout. Suggested that an earthquake 
shock might have been the cause of the phenomenon. Considered the 
puddingstone anterior to the coal. 
Observations on the comparative effects of the inhalation of nitrous 
oxide and the vapor of chloroform and sulphuric ether, pp. 1.32-133. 
Report on the geological and mineralogical survey of the mineral 
lands of the United States in the state of Michigan. Ex. Doc. No. 5, 
House Reps., 31st Congress, 1st Se.fH.ypt. 3, 1849, pp. 398, 399, 45'2.- 
1850. 
Amer. Jour. Sci., ix, 1850. 
Description of the Vermiculite of Millbury, Mass., pp. 422-428. (com- 
municates an analysis by Richard Crosseley. 
