Prmtitivc Man in the Sommc Valley. — Upham. 355 
my view, to be almost wholly represented by deposition of 
the gravel and sand on the lower flanks of the valley slopes, 
chiefly adjoining the mouths of tributaries; and it is in the 
older of these gravel beds that the flint implements occur, 
indicating the sojourn of men there at the beginning and 
through the early part of the Ice age. 
In referring the valley erosion thus to middle and late 
Tertiary times, I agree with Alfred Tylor, whose careful dis- 
cussions of this valley and those of southern Britain have 
hitherto received less attention than they deserve, probablv 
because they differ from the earlier published views of Prest- 
wich, Lyell, Lubbock, Evans, and others, who ascribe the 
excavation of the lower part of the Somnie valley to river 
action during the Palaeolithic period, while the later gravel 
beds were being deposited, or in the intervals of such deposi- 
tion and afterward.* The Tertiary erosion extended through 
^Without attempting reference to all of the multitude of papers 
and books relating to the evidences of primitive man in the Sonmie 
\alley, citation of some which are more important or comprehensive 
may be noted as follows: 
Boucher de Perthes, Antiquites Celtiqiies et Antediluviennes,, vol. 
I, pp. 628, with 80 plates (1600 figures), 1847: vol. II, pp. 511, with 26 
pis. (500 figs.), 1857; vol. Ill, pp. 681, with 12 pis. (104 figs.), 1864. 
Sir Joseph Prestwich, Proc. Roy. Soc, 1859; Phil. Trans.. i36o, 
1864; many later papers, especially in Quart. Jour. Geol. Soc; and his 
Geology, vol. II. 1888. 
Sir Charles Lyell. Brit. Assoc. Report, 1859, Ft. 2, pp. 93-95; The 
Geological Evidences of the Antiquity of Man, 1863, chapters VII and 
VIII. 
Sir John Lubbock, numerous papers, 1861-1864; Pre-historic Times, 
1865. 1869. chapter XI. 
Sir John Evans, Archa?ologia, 1862, pp. 28, with four plates: 
numerous other papers; and Ancient Stone Implements, Weapons, and 
Ornaments, of Great Britain, 1872 (exceedingly useful in its fullness 
of bibliographic references). 
Prof. W. Boyd Dawkins, numerous papers, 1862 and onward; Cave 
Hunting. Researches on the Evidence of Caves respecting the Early 
Inhabitants of Europe, 1874. 
Alfred Tylor. Quart. Jour. Geol. Soc. vol. XXII. 1866, pp. 463-468; 
vol. XXIV, 1868. pp. 103-125, with two plates (map of .A.miens and 
vicinity, and 13 sections), and 13 figures (sections, profiles, and a map) 
in the text [same also in the Am. Jour, of Science, second series, vol. 
XLVI. pp. 302-327, with plates, Nov.. 1868]; and vol. XXV. 1869. 
pp. 57-100. with six plates (abstract and discussion of this paper in 
vol. XXIV, pp. 455, 456). 
Dr. Edmund Andrews. .A.m. Jour. Sci.. second series, vol. XLV. 
l)p. 180-190. March, 1868. 
Prof. James Geikie. The Great Ice Age and its Relation to the 
.Anti'iuity of Man. 1874, 1877, 1894: Prehistoric Europe. 1881. 
Prof. Gabriel de Mortillct, Materiaux pour I'Histoire Primitive et 
Naturelle de I'Homme. 1865 and onward; Le Prchistorique. 1883. 
