weeks.] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1894. 93 
GG5 Turner (Henry W.). Notes on the gold ores of California. 
Am. Jour. Sci., 3d ser., vol. xlvii, pp. 467-473. 
Describes the veins of the Auriferous slate series, the veins in gran- 
ite, and the occurrence of gold with albite, barite, calcite, quartz in 
rhyolite, and cinnabar. • 
565d Lindgren (W.) and. Placerville folio. California. 
U. S. Geol. Surv., Geologic Atlas of the United States, folio 3. 
See Lindgren (W.) and Turner (H. W.), No. 365. 
566 and Stanton (T. W.). Notes on the geology of the Coast 
ranges of California. 
Am. Geol. xiv, pp. 92-98. 
Discusses the evidence indicating the conformability of the Chico 
and Tejon series at New r Idria, Cal., and gives a list of fossils from 
Tejon strata collected in Fresno, Sonomo, Lake, and Yulo counties. 
567 Tuttle (E. G.). The Sabinas coal field [Mexico]. 
Eng. and Mg. Jour., vol. lviii, pp. 390-392. 
Describes the coal seams and the character of the coal, and gives 
its chemical analyses. Accompanied by a geologic sketch map and 
cross sections of the region. 
568 Tyrrell (J. Burr). Notes on the Pleistocene of the Northwest 
Territories of Canada, northwest and west of Hudson 
Bay. 
Geol. Mag., dec. iv, vol. i, pp. 394-399. 
Abstract: Am. Geol., vol. xiv, pp. 338-340. 
Describes the lithologic characters of the Cambrian, pre-Cambrian, 
and glacial deposits of this region, and presents a map of the Terri- 
tories. 
u. 
569 Udden (J. A.). Erosion, transportation, and sedimentation per- 
formed by the atmosphere. 
Jour, of Geol., vol. ii, pp. 318-331. 
Abstract: Am. Nat., vol. xxviii, pp. 953-954. 
Compares the erosive jiower of air and water and describes the con- 
ditions favorable to the erosion and transportation of the earth's 
material by wind and the character of the deposits thus formed. 
570 Ulrich (E. O.). New and little known Lamellibranchiata from the 
Lower Silurian rocks of Ohio and adjacent States. 
Ohio Geol. Surv., vol vii, pp. 627-693. 
Describes and figures fossils from the Lower Silurian. 
570a United States Geological Survey. Eleventh Annual Eeport, 
1889-90. 
Abstract: Am. Nat., vol. xxviii, p. 336 (i p.). 
570& Twelfth Annual Eeport, 1890-91. 
Abstract: Am. Geol., vol. xiv, j>P- 113-114. 
570c* United States National Museum. Eeport, 18915. 
Abstract: Am. Nat., vol. xxviii, pp. 866-867 (£ p.). 
