he drift-gravels in various parts of southern
England and northern France, I am inclined to think that it has a wide
application.")

Down, July 19th, 1880.

Your letter has pleased me very much, and I truly feel it an honour that
anything which I wrote on the drift, etc., should have been of the least
use or interest to you. Pray make any use of my letter (512/2. Professor
James Geikie quotes the letter in "Prehistoric Europe," London, 1881
(page 141). Practically the whole of it is given in the "Life and
Letters," III., page 213.): I forget whether it was written carefully or
clearly, so pray touch up any passages that you may think fit to quote.

All that I have seen since near Southampton and elsewhere has
strengthened my notion. Here I live on a chalk platform gently sloping
down from the edge of the escarptment to the south (512/3. Id est,
sloping down from the escarpment which is to the south.) (which is
about 800 feet in height) to beneath the Tertiary beds to the north. The
(512/4. From here to the end of the paragraph is quoted by Prof. Geikie,
loc. cit., page 142.) beds of the large and broad valleys (and only of
these) are covered with an immense mass of closely packed broken and
angular flints; in which mass the skull of the musk-ox [musk-sheep]
and woolly elephant have been found. This great accumulation of unworn
flints must therefore have been made when the climate was cold, and I
believe it can be accounted for by the larger valleys having been filled
up to a great depth during a large part of the year with drifted frozen
snow, over which rubbish from the upper parts of the platforms was
washed by the summer rains, sometimes along one line and sometimes along
another, or in channels cut through the snow all along the main course
of the broad valleys.

I suppose that I formerly mentioned to you the frequent upright position
of elongated flints in the red clayey residue over the chalk, which
residue gradually subsides into the troughs and pipes corroded in the
solid chalk. This letter is very untidy, but I am tired.

P.S. Several palaeolithic celts have recently been found in the great
angular gravel-bed near Southampton in several places.

LETTER 513. TO D. MACKINTOSH. Down, November 13th, 1880.

Your discovery is a very interesting one, and I congratulate you on
it. (513/1. "On the Precise Mode of Accumulation and Derivation of the
Moel-Tryfan Shelly Deposits; on the Discovery of Similar High-le