weeks,] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1898. 75 
626 Phillips (William B.). The brown ore deposits near Leeds, Ala- 
bama. 
Eng. and Mg. Jour., vol. lxv, pp. 489-490, 2 figs., 1898. 
Describes the occurrence of the iron ore in this region. 
627 Die Goldlagerstatten in Alabama. 
Review by A. Schmidt, Zeit. fur prak. Geol., 1898, Heft 7, pp. 253-254, 
1898. 
See Bibliography and Index for 1897, No. 478. 
628 Pilsbry (Henry A.). Note on the "Florencia formation." 
Am. Jour. Sci., 4th ser., vol. v, pp. 232-233, 1898. 
Discusses the age of the beds and gives a list of fossils from Iowa 
City, Iowa. 
629 Pirsson (L. V.). See Diller (J. S.), No. 234. 
630 Weed (W. H.) and. Geology and mineral resources of the 
Judith Mountains of Montana. 
See Weed (W. H.) and Pirsson (L. V.), No. 855. 
631 Poole (Henry S.). The mineralogy of the Carboniferous. 
Can. Mg. Rev., vol. xvii, pp. 50-51; Federated Can. Mg. Inst., Jour., 
vol. iii, pp. 77-81, 1898. 
Contains brief notes on the mineral found in the Carboniferous for- 
mation of eastern Canada. 
632 Powell (J. W.). An hypothesis to account for the movement in 
the crust of the earth. 
Jour, of Geol., vol. vi, pp. 1-9, 1898. 
633 Pratt (J. H.). Mineralogical notes on cyanite, zircon, and anor- 
thite from North Carolina. 
Am. Jour. Sci., 4th ser., vol. v, pp. 126-128, 2 figs., 1898. 
Describes the crystallographic characters of the material. 
634 Mineralogical notes on anthophyllite, eustatite, and beryl 
(emerald) from North Carolina. 
Am. Jour. Sci., 4th ser., vol. v, pp. t- ,( »-432, 1898; Abstract, Am. Geol., 
vol. xxii, p. 377 (61.), 1898. 
Describes their occurrence and crystallographic and chemical char- 
acters. 
635 On the origin of the corundum associated with the peridotites 
in North Carolina. 
Am. Jour. Sci., 4th ser., vol. vi, pp. 49-65, ligs. 1-8, 1898; Review, Am. 
Geol., vol. xxii, pp. 377-378 (£ p. ), 1898. 
Reviews the literature on the subject and discusses the origin and 
relations of corundum. Includes two geologic sketch maps. 
636 The occurrence, origin, and chemical composition of chromite. 
Abstract, Eng. and Mg. Jour., vol. lxvi, p. 696 (i p.), 1898. 
Describes occurrence in the Appalachian region. 
