VII

A LOBSTER; OR, THE STUDY OF ZOOLOGY [1861]
(A Lecture delivered at the South Kensington Museum.)


VIII

BIOGENESIS AND ABIOGENESIS [1870]
(The Presidential Address to the Meeting of the British Association for
the Advancement of Science at Liverpool.)


IX

GEOLOGICAL CONTEMPORANEITY AND PERSISTENT TYPES OF LIFE [1862]
(Address to the Geological Society on behalf of the President by one of
the Secretaries.)


X

GEOLOGICAL REFORM [1869]
(Presidential Address to the Geological Society.)


XI

PALAEONTOLOGY AND THE DOCTRINE OF EVOLUTION [1870]
(Presidential Address to the Geological Society.)