weeks.] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1898. 79 
665 Ries (Heinrich). Note on a beryl crystal from New York City. 
N. Y. Acad. Sci., Trans., vol. xvi, pp. 329-330, 1 fig., 1898. 
Describes occurrence and crystallography. 
G66 Physical tests of New York shales. 
School of Mines Quart., vol. xix, pp. 192-194, 1898. 
Describes the characters of the shales and gives a summary of the 
physical tests. 
667 Clay industries of New York. 
N. Y. State Mus., 48th Ann. Rept., vol. i, Appendix, pp. 97-262, 3 pis., 24 
figs, and map, 1898. 
See Bibliography and Index for 1895, No. 398. 
668 Riggs (E. S.). On the skull of Amphictis. 
Am. Jour. Sci., 4th ser., vol. v, pp. 257-259, 2 figs., 1898. 
Describes material in the collections at Princeton University. 
669 Roberts-Austin (Professor). Canada's metals. 
Macmillan & Co., limited, London, 46 pp., 13 figs., 1898. 
Describes the mineral resources of Canada. 
670 Roy (Andrew). Geology of the Jackson County coal in Ohio. 
Abstract, Eng. and Mg. Jour., vol. lxv, p. 164, 1898. 
Describes the occurrence of coal in this county. 
671 Ruedemann (R.). Development and mode of growth of Diplo- 
graptus McCoy. 
N. Y., 14th Ann. Rept. State Geologist, pp. 219-249, 5 pis. ; N. Y. State 
Mus., 48th Ann. Rept., vol. ii, pp. 219-249, 5 pis. Review by Stuart 
Weller, Jour, of Geol., vol. vi, p. 206, 1898. 
672 The discovery of a sessile Conularia. 
N. Y., 15th Ann. Rept. State Geologist, vol. i, pp. 24, 699-728, pis. i-iv, 
1897 ; N. Y. State Mus., 49th Ann. Rept., vol. ii, pp. 699-728, pis. i-iv, 1898. 
673 Additional note on the oceanic current in the Utica epoch. 
Am. Geol., vol. xxi, pp. 75-81, figs. 1-2, 1898. 
Discusses the evidences of Ordovician strata overlying the Adiron- 
dack crystalline area. 
674 — On the development of Tetradium cellulosum Hall sp. 
Am. Geol., vol. xxii, pp. 16-25, pi. v, 1898. 
Reviews the literature on the genus and describes material from the 
Trenton limestone of New York. 
675 Synopsis of recent progress in the study of graptolites. 
Am. Nat., vol. xxxii, pp. 1-16, 28 figs., 1898. 
Reviews recent work on graptolites and gives a bibliography. 
676 Russell (Israel Cook). Glaciers of Mount Rainier, with a paper 
on the rocks of Mount Rainier, by George Otis Smith. 
U. S. Geol. Surv., 18th Ann. Rept., Pt. II, pp. 355-423, pis. lxv-lxxxii, 
1898. 
Describes the physical features of the State of Washington and the 
glaciers and glacial phenomena of the region. 
