Sketch of W. W. 31 ather.— Hitchcock. 11 
(8) Crystallized Perohloride of Platinum, analysis and atomic con- 
stitution, (a hydrated perchloride). Am. Jour. Sci., vol. xxvii, p. 262-263. 
(9) Amalgam of Platinum, anew and easy method of preparation. 
Am. Jour. Sci., vol. xxvii, p. 26.3. 
(10) Iodide of Mercury, solvents and properties. Am. Jour. Sci., 
vol. XXVII, p. 263. 
(11) Bitungstate of Ammonia, solubility in water determined, and 
re-agents for. Am. Jour. Sci., vol. xxYir, p. 264. 
(12) Disulphuret of Bismuth, with analysis and atomic constitution. 
Am. Jour. Sci., vol. xxvii, p. 264. 
Report on the Geological Reconnaisance between Green bay and the 
Coteau des Prairies, by Lt. W. W. Mather, on topographic duty, as as- 
sistant to G. W. Featherstonhaugh. Manuscript report sent from the 
Arsenal, near St. Louis, Mo., in November or December, 1835, to Lt. 
Col. J. J. Abert, of Topographical Bureau, Washington. Returned to 
the author in 1851, at his request. 
Topographical .sketch of the valley and meanderings of the St. Peter's 
river, accompanied the above report, from plotting courses and dist- 
ances. Sent with the above report, but not returned with the report to 
W. W. M. 
1836. 
Report on the Martiusburgh Lead Mines and Ores. 
Instrument proposed for measuring accurately the expansion of solid 
bodies, and which may be used as a thermometer, and is also adapted 
for testing standards of length, and for Geodetical operations, \m. 
Jour. Sci. and Arts, xxx, p. 324. 
1837. 
First Annual Report on the Geological Survey of the First, or S. E. 
District of New York, made December, 1836. State Assembly Doc. No. 
161, p. 63-97, 1837. 
Report on Gold Mines of North Carolina. [To Mclntire, Gregory & 
Co.] 
Second Annual Geological Report of the First District, N. Y. As- 
sembly Doc, 200 of 1838, p. 121-184. 
Report on a reputed coal tract in Pennsylvania. 
18.38. 
Geology for use of schools and academies. Revised, enlarged and 
stereotyped. Published and stereotyped in New York by J. Arnville 
Taylor. [This work passed through several editions in successive years, 
until the publication was ordered to be stopped by W. W. M.] 
First Annual Geological Report of Ohio. Ohio, Assembly Doc. 
Third Annual Geological Report of New York. Assembly Doc. 275, 
p. 67-196. 
Second Annual Geological Report of the Ohio Geological Survey. 
Assembly Doc. Reports. 
1839. 
Report on the Coal-Grove Coal and Iron property, with a description 
of its resources, and a minute topographical and geological map, and 
