weeks.] PALEONTOLOGY, PETKOLOGY, AND MINERALOGY, 1901. 47 
369 Hilgard (E. W.)'. A sketch of the pedalogical geology of Cali- 
fornia. 
Abstracts: Jour. GeoL, vol. 9, pp. 74-75, 1901; Geol. Soc/Am., Bull., 
vol. 12, pp. 499-500, 1901. 
General notes on the soils of the state. 
370 Hill (B. F.), Kemp (J. F.) and. Preliminary report on the pre- 
Cambrian formations in parts of Warren, Saratoga, Fulton, 
and Montgomery counties (New York.) 
See Kemp (J. F.) and Hill (B. F.), 421. 
371 Hill (Robert T.). [Review of " A record of the geology of Texas 
for the decade ending December 31, 1896," by Frederic W. 
Simonds.] 
Science, new ser., vol. 13, pp. 226-227, 1901. 
372 The coast prairie of Texas. 
Science, new ser., vol. 14, pp. 326-328, 1901. 
Describes the evidences of differential movements in this region and 
its bearing on the occurrence of oil. 
373 — — Geographic and geologic features of Mexico. 
Eng. & Mg. Jour., vol. 72, pp. 561-564, 2 figs., 1901. 
Describes the physiography and geology of the country. 
374 Hills (R. C). Spanish Peaks folio— Colorado. 
U. S. Geol. Surv., Geol. Atlas of U. 8., Folio No. 71, 1901. 
Describes the geographic features, the character and occurrence of the 
Cretaceous, Eocene and Neocene strata, the geologic structure, the igne- 
ous rocks, and the occurrence of coal and artesian water. 
375 Hitchcock (C. KL). Tuff cone at Diamond Head, Hawaiian 
Islands. 
Abstracts: Geol. Soc. Am., Bull., vol. 12, p. 462 (| p.), 1901; Science, 
new ser., vol. 13, p. 981 (J p.), 1901. 
376 Hobbs (William Herbert). The Newark system of the Pomper- 
aug Valley, Connecticut. 
U. S. Geol. Surv., 21st Ann. Rept., Pt, III, pp. 7-160, pis. i-xvii, 
figs. 1-59, 1901. 
Gives a sketch of present knowledge regarding this system, describes 
the character of the sedimentary and igneous rocks, and discusses the 
deformation and degradation of the region. 
377 The river system of Connecticut. 
Jour. Geol., vol. 9, pp. 469-485, pis. 1-2, figs. 1-2, 1901. 
Describes the occurrence and origin of the jointing and faulting in the 
Pomperaug Valley, the occurrence of certain intersecting series of par- 
allel lines called troughs, which occupy tin' drainage channels for vary- 
ing distances. 
378 Diainondiferous deposits in the United States. 
Min. Ind. for 1900, pp. 301-304, 1901. 
Briefly describes occurrence and distribution. 
