96 
771 Winslow (Arthur), Haworth (Erasmus), and Nason (Frank L.). 
A report on the Iron Mountain sheet, including portions of 
Iron, St. Francois, and Madison counties [Missouri]. 
Mo. Geol. Surv., vol. ix, sheet rept. No. 3, 85 pp., pis. i-v, figs. 1-14, 189G. 
Describes the physiography of the area, the character of the Archean, 
Algohkian, and Paleozoic rocks and their structural relations, and the 
economic geology of the iron deposits and building stones. 
772 Wolff (J. E.). On an occurrence of theralite in Costa Rica, Cen- 
tral America. 
Am. Jour. Sci., 4th ser., vol. i, pp. 271-272, 1896. 
Describes the occurrence and petrographic characters of this rock 
variety. 
773 Woodhouse (C. C, jr.). Coal fields of Washington. 
Mining, A^ol. i, pp. G7-71, 1896. 
Describes the extent and character of the coal fields and the geologic 
structure of the region: 
774 Woodward (Henry). On some x>odophthalniatous crustacea from 
the Cretaceous formation of Vancouver and Queen Charlotte 
islands [British Columbia]. 
London Geol. Soc, Quart. Jour., vol. lii, pp. 221-228, figs. 1-6, 1896. 
Gives lists of fossils described by various writers from the Cretaceous 
rocks of the region and describes four new species. 
775 Woodworth (J. B.). The retreat of the ice sheet in the Narragan- 
sett Bay region. 
Am. Geol., vol. xviii, pp. 150-168, pi. vi, 1896. 
Describes the different stages of the retreat of the ice sheet and dis- 
cusses the evidences as to the time interval between these stages. 
Accompanied by geologic map. 
77G The ice sheet in Glacial JSTarragansett Bay. 
Am. Geol., vol. xviii, pp. 391-392 (correspondence), 1896. 
Gives additional data as to the Glacial phenomena of the region. 
777 On the fracture system of joints, with remarks on certain 
great fractures. 
Boston Soc. Nat. Hist., Proc, vol. xxvii, pp. 163-183, pis. 1-5, 1896. 
Discusses the phenomena of joints as exhibited in the "Cambridge 
slates" of Massachusetts and gives a list of papers on the subject of 
joints. 
778 and Marbut (C. P.). The Queens Eiver moraine in Rhode 
Island. 
Jour, of Geol., vol. iv, pp. 691-703, figs. 1-7, 1896. 
Describes the character and extent of this moraine in Rhode Island. 
779 Shaler (H". S.j, and Marbut (C P.). The Glacial brick clays 
of Rhode Island and southeastern Massachusetts. 
See Shaler (N. S.), Woodworth (J. B.), and Marbut (C. F.),No. 612. 
