Recent Publications. 127 
and their Cootacl Phenomena. By. W. S. Bayley. U. S. Geol. Survey, 
Bull. 109, 121 pages, 8plates, 1893. 
Annual Reporl of the Smithsonian Institution, 1892, contains: Geolog- 
ical change and time, Archibald Geikie; Geological history of the Yel- 
lowstone National Park. Arnold Bague; Soaping geysers, Arnold Hague; 
Continental problems of geology, G. K. Gilbert; Crystallization, G. I). 
Liveing; Tin- rejuvenescence of crystals. .1. W. Judd. 
The relation of biology to geological investigation, M\ C. A. White. 
Kept. U. S. National Museum for 1892, pp. 245-368. 
Note on a blue mineral, supposed to be ultramarine, from Silver City. 
New Mexico. By R. L. Packard. Proc. V. S. National Museum, vol. 
17, No. 978. 
Forty-fifth Annual Report of the Regents of tin- New York Slate 
Museum, for the year 1891, contains: Report on a deposit of marl and 
peat in the town of New Baltimore, W. B. Marshall; Report on the de- 
velopment of the Salt industry of central New York for the year 1891, 
1. P. Bishop; also the papers listed under the Uth Reporl of the State 
( reologist. 
Forty-sixth Annual Report of the same, contains: Papers listed un- 
der the 12th Report of the State Geologist. 
Twelfth Annual Report of the United States Geological Survey, Pt. 1 
(Geology), contains: Report of the Director,.!. W. Powell: Administra- 
tive Reports; The origin and nature of soils. N. S. Shaler; The Lafay- 
ette formation, AY .1 McGee; The North American continent during 
Cambrian time. ('. 1). Walcott; The eruptive rocks of Electric peak and 
Sepulchre mountain, Yellowstone National park, .1. P. Iddings. Part 
1 1 is devoted to Irrigation. 
//. Proceedings of Scientific Societies. 
Annalsof the N. Y. Academy of Sciences, vol. ?. nos. 6-12, March. 
1894, contains: The granite of Mounts Adam and Eve, Warwick, Or- 
ange county. N. Y., and its contact phenomena, by .1. F. Kemp and 
Arthur Hollick, with an appendix containing a list and bibliography of 
the minerals occurring in Warwick township, by Heinrich Ries. 
Bulletin of the Geological Society of America, vol.5, pp. 515-665, 
contains: Eastern boundary of the Connecticut Triassic, W. M. Davis 
and L. S. Griswold; Pleistocene problems in Missouri. .1. F. Todd: Pro- 
ceedings of the sixth annual meeting, held at Boston. Dec. 27, "is and 
29,1893, EL L. Fairchild; Geological writings of Alexander Winched: 
Geological writings of Charles Albert Ashburner, F. A. Hill: Geological 
writings of David Honeyman, .i.e. McGregor; Geological writings of 
George II. Cook, .1. c. Smock: Geological writings of Richard Owen, .1. 
Stanley-Brown; Fossil flora of Alaska. Frank II. Know] ton ; Johann 
David Schoepf, and his contributions to North American geology, G. 
II. Williams; the later Tertiary lacustrine formations of the West, W. 
I;. Scott: Volcanite, an anorthoclase-augite rock chemically like the 
dacites, W. H. Hobbs; Geographical work for state geological surveys, 
