272 Str Charles Lyell. 
liest Fellows. On the opening of King’s College, London, a few 
years later, he was appointed its first Professor of Geology. 
He had already contributed some important papers to the 
‘Transactions’ of the Geological Society, including one ‘On a 
Recent Formation of Freshwater Limestone in Forfarshire, and 
on some Recent Deposits of Freshwater Marl, with a comparison 
of recent with ancient Freshwater Formations, and an Appendix 
on Gyrogonites, or Seed-Vessels of Chara;’ also one ‘On the 
Strata of the Plastic Clay Formation exhibited in the Cliffs be- 
tween Christchurch Head, Hampshire, and Studland Bay, 
Dorsetshire ; another *On the Freshwater Strata of Hordwell 
Cliff, Beacon Cliff, and Barton Cliff, Hampshire ;’ and’ an 
is magnum opus, ‘The Principles of Geology,’ appeared in 
three successive instalments, published respectively in 18380, 
1832, and 1888. The work, subsequently enlarged into two 
volumes, has passed through numerous editions, and is still in 
as much demand as ever among students of the science. The 
work was subsequently divided into two parts, which have 
been published as distinct books, viz. ‘The Principles of 
Geology, or the Modern Changes of the Earth and its Inhabit- 
ants, as illustrative of Geology,’ and secondly, ‘The Elements 
of Geology, or the Ancient Changes of the Karth and its In- 
habitants, as illustrated by its Geological Monuments.’ The 
substance of the last-named work has also been published under 
the title of ‘The Manual of Elementary Geology,’ a French 
translation of which was issued under the auspices of the 
famous Arago. ~ ; 
‘“ Already, some time previous to the publication of this 
work, Mr. Lyell had been chosen a Vice-President of the 
Geological Society ; and in 1828 he had undertaken a journey 
into the voleanic regions of Central France, visiting Auvergne, 
Cantal, and Velay, and continuing his journey to Italy and 
Sicily. He published the results of this expedition in the 
‘Edinburgh Philosophical Transactions,’ and also in the ‘ An- 
nales des Sciences Naturelles.’ : 
“Tt was, however, the publication of his ‘Principles of 
Geology’ that gave him that established reputation which he 
