*eks.] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1904. 127 
Vhite (Israel C.) — Continued. 
1 Petroleum and natural gas. Precise levels. 
W. Va. Geol. Surv., vol. 1A, 625 pp., 1904. 
Gives a historical sketch of the subject and describes the occurrence of petro- 
leum and natural gas, including many records of borings and precise surface 
levels. 
i [In discussion of paper by R. Pearson on "The discovery of natu- 
ral gas in Sussex, Heath-field district.''] 
Inst. Mg. Engrs. [Engl.], Trans., vol. 26, pp. 506-507 [1904]. 
A short note in regard to the occurrence of natural gas in the United States. 
yhiteaves (J. F.). 
The Canadian species of Trocholites. 
Ottawa Nat., vol. 18, pp. 13-18, 1904. 
B Description of a new genus and species of rugose corals from the 
Silurian rocks of Manitoba. 
Ottawa Nat., vol. 18, pp. 113-114, 1904. 
i Uintacrinus and Hemiaster in the Vancouver Cretaceous. 
Am. Jour. Sci., 4th ser., vol. 18, pp. 287-289, 1904. 
Describes the occurrence and character of fossil echinoderms from Vancouver 
Island and gives a description of Hemiaster vancouverensis n. sp. 
Vhitfield (R. P.). 
[) Notice of a new genus and species of Lower Carboniferous bryozoan. 
Am. Mus. Nat. Hist., Bull, vol 20, p. 469, 1 pi., 1904. 
\ Notice of a remarkable case of reproduction of lost parts shown on 
a fossil crinoid. 
Am. Mus. Nat. Hist., Bull., vol. 20, pp. 471-472, 2 pis., 1904. 
i Note on some worm (?) burrows in rocks of the Chemung group of 
New York. 
Am. Mus. Nat. Hist,, Bull., vol. 20, pp. 473-474, 1 pi., 1904. 
Thitney (Milton). 
Field operations of the Bureau of Soils, 1903. 
U. S. Dept. Agric, Bur. Soils, '5th Rept., 1904. 1310 pp., 3 pis., 61 figs, and 
78 maps (in separate case). 
Contains the following papers: 
Field operations of the Bureau of Soils, 1903. General review of the work, by Milton Whit- 
ney, pp. 33-37. 
Soil survey of the Connecticut Valley, by Elmer O. Fippin, pp. 39-61. 
Soil survey of the Syracuse area, New York, by F. E. Bonsteel and others, pp. 63-89. 
Soil survey of the Long Island area, New York, by J. A. Bonsteel and party, pp. 91-128. 
Soil survey of the Lockhaven area, Pennsylvania, by J. 0. Martin, pp. 129-112. 
Soil survey of the Dover area, Delaware, by F. E. Bonsteel and O. L. Ayres, pp. 143-164. 
Soil survey of Worcester County, Md., by F. E. Bonsteel and William T. Carter, jr., pp. 165-189. 
Soil survey of the Leesburg area, Virginia, by William T. Carter, jr., and W. S. Lyman, pp. 
191-231. 
Soil survey of the Norfolk- area, Virginia, by J. E. Lapham, pp. 233-252. 
Soil survey of the Craven area, North Carolina, by William G. Smith and George N. Coffey, 
pp. 253-278. 
Soil survey of the Asheville area, North Carolina, by J. E. Lapham and F. N. Meeker, pp. 
279-297. 
