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New York Acad. Sci., Trans., vol. 1, pp. 101- 

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Hider, Arthur. Report upon observa- 

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U. S. Army, Chief of Engineers. Eeport, for 

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Higgins, James. Second report of the 

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Third report of the State agricultural 



chemist of Maryland, 160 pages, Balti- 

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Fourth annual report of the State 



agricultural chemist to the house of 

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Fifth agricultural report of the State 



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Another edition has pp. 15-18 omitted. 



Sixth agricultural report of the State 



chemist to the house of delegates of 

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A succinct exposition of the indus- 

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[Hildreth, S. P.]. Facts relating to cer- 

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Ohio. 



All!. Jour. Sci., vol. 12, pp. 205-206, 1827. 



Miscellaneous observations on the 



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Bowlder stones of primitive rocks 



[in Ohio]. 



Am. Jonr. Sci., vol. 16, pp. 154-159, 1829. 



Observations on the saliferous rock 



formation in the valley of -^he Ohio. 

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Observations on the bituminous coal 



deposits of the valley of the Ohio and 

 the accompanying rock strata, with 

 notices of the fossil organic remains 

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 bodies. 



Am. Jour. Sci., vol. 29, pp. 1-154, map, 1836. 



[Hildreth, S. P.]— Continued. 



[General sketch of the geology of 



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Eeport of the committee on a geological sur- 

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Note on the Lias of the West [Ohio. ] 



Am. Jour. Sci., vol.30, p. 395 (| p.), 183B. 



Report [on coal measure districts]. 



Geol. Surv. Ohio, lat Annual Eeport, by "W. 

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Abstract, Am. Jour. Sci., vol. 34, pp. 350-354, 

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Hilgard, Eugene W. Report on the 

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Remarks on the new division of the 



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Am. Jour. Sci., 2d series, vol. 42, pp. 68-70, 

 1866. 



On the Quaternary formations of the 



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Am. Jour. Sci., 2d series, vol. 41, pp. 311-325, 

 1866. 



Remarks on the drift of the Western 



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Am. Jonr. Sci., 2d series, vol. 42, pp. 343-347, 

 1866. 



Note on Dr. Andrews's paper on the 



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Am. Jour. Sci., 2d series, vol. 43, pp. 241-242, 

 1867. 



On the Tertiary formations of Mis- 

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Am. Jour. Sci., 2d series, vol. 43, pp. 29-41, 

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Preliminary report of a geological 



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From DeBow'a Eeview, vols. 37-38, pp. 754^ 

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On the geology of lower Louisiana 



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Am. Jour. Sci., 2d series, vol. 47, pp. 77-88, 

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Abstract, Neues Jahrbuoh, 1873, pp. 553-534, 

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