86 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 
Continent. Nearly every standard work in these departments of 
science, published during that period, contains acknowledgment of 
assistance received from him. The most distinguished biologists 
have borne testimony to the success of his researches and the value 
of his contributions to science, and among the names of such may 
be mentioned Professor Koelliker, Dr. Gwyn Jeffreys, Professor 
G. S. Brady, Mr. H. B. Brady, Rev. Canon A. M. Norman, Dr. 
Anton Dohrn, Professor Michael Sars, and Dr. John Murray. At 
least one genus, and more than a dozen species, have been named 
in his honour, while the species described from specimens discovered 
by him have been very numerous. 
He submitted many papers to the societies with which he was 
connected, as well as to various scientific journals. Of these, the 
largest number was communicated to our own Society, but others, 
contributed wholly or partly by him, appear in the Zransactions 
of the Geological Society of Glasgow, Proceedings of the Philo- 
sophical Society of Glasgow, Transactions of the Geological Society 
of London, Quarterly Journal of the Geological Society, Reports 
of the British Association, Quarterly Journal of Microscopical 
Science, Annals and Magazine of Natural History, &e. 
Having been admitted a member of the Natural History Society 
of Glasgow in 1852, soon after its formation, he afterwards held 
office for some time as a Member of Council, and was several times 
appointed a Vice-President. | _In September, 1887, he was unani- 
mously elected President of the Society for a full term of three 
years. Although, for a long period, he was unable to be present 
at any of the meetings, his interest in the Society’s welfare 
remained undiminished. This was fully shown by the specimens 
and communications which he continued to submit to the meetings, 
and which in number far exceeded those contributed by any 
other member. 
In 1859 he became a member of the Geological Society 
of Glasgow. The same year he also joined the Philosophical 
Society of Glasgow, of which he continued a member for about 
18 years. 
In 1865 he was elected a member of the Royal Imperial 
Zoologico-Botanical Society of Vienna, and received its diploma. 
In 1876 he was elected a Fellow of the Linnean Society of Lon- 
don, and in 1877 a Fellow of the Geological Society of London, 
