METAMORPHISM OF ROCKS.

LONGMANS, GREEN, AND Co.

AND NEW YORK: 15 EAST 16th STREET

1889

M. N. W.

TO THE

REV. T. G. BONNEY, D.Sc., LL.D., F.R.S.,

Past President of the Geological Society,

Professor of Geology in University College, London;

Fellow of St. John's College, Cambridge;

Honorary Canon of Manchester;

in admiration of his skill in microscopic petrology and as a field-geologist, and of his extensive culture; this little work is dedicated by

THE AUTHOR.