Simpson, R. D., Patterson, L. W., and Singer, C. A. (1986) Lithic technology of 
the Calico Mountains site, southern California.
In
Bryan, A. L., ed.
New Evidence for the Pleistocene Peopling of the Americas.
Orono, Maine, Center for the Study of Early Man, pp. 89-105.


Singh, P. (1974)
Neolithic Cultures of Western Asia.
New York, Seminar.


Sinclair, W. J. (1908) Recent investigations bearing on the question of the 
occurrence of Neocene man in the auriferous gravels of the Sierra Nevada.
University of California Publications in American Archaeology and Ethnol­ogy. 
7(2):107—131.


SIemmons, D. B. (1966) Cenozoic volcanism of the central Sierra Nevada, 
California.
Bulletin of the California Division of Mines and Geology, 190:
199—208.


Smith, G. E. (1931) The discovery of primitive man in China.
Antiquity, 5:
20-36.


Snelling, N. J. (1963) Age of the Roirama formation, British Guiana.
Nature, 198:
1079—1080.


Sollas, W. J. (1911)
Ancient Hunters,
1 st edition. London, Macmillan.


Sollas, W. J. (1924)
Ancient Hunters,
3rd edition, revised. London, Macmillan.


Southall, J. (1882) Pliocene man in America.
Journal of the Victoria Institute, 15:
191—201.


Sparks, B. W., and West, R. G. (1972)
The Ice Age in Britain.
London, Methuen.


Spencer, F. (1984) The Neandertals and their evolutionary significance: a brief 
historical survey.
In
Smith, F. H., and Spencer, F., eds.
The Origin of Modern Humans: A World Survey of the Fossil Evidence.
New York, Alan R. Liss, pp. 1-49.


Sprague, R. (1986) Review of
The Sasquatch and Other Unknown Hominoids,
V. Markotic, ed.
Cryptozoology, 5:
99-108.


Stafford, T. W, Jull. A. J. Т., Brendel, K., Duhamel, R. C., and Donahue, D. 
(1987) Study of bone radiocarbon dating accuracy at the University of Arizona 
NSF Accelerator Facility for Radioisotope Analysis.
Radiocarbon, 29:
24-44.


Stainforth, R. M. (1966) Occurrence of pollen and spores in the Roraima