32 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



dredging expedition to the West of Ireland. In May, 1869, 

 accompanied by his wife, he visited the Post-Tertiary deposits in 

 the East of Scotland, between Edinburgh and Montrose ; and in 

 the following month he went with Dr. Brady to the Norfolk 

 broads in quest of fresh-water Ostracoda. Equipped with a new 

 and improved type of dredge, specially designed by himself for 

 work among the fens, he afterwards paid a second visit to the 

 East of England. In company with Dr. Brady, he made another 

 expedition to the West of Ireland in May, 1871, and later in the 

 year he visited Brady at Sunderland. In 1872 he devoted some 

 time to the study of the geology of the district round Campbel- 

 town Loch, while in July of that year he received at Fern Bank 

 a visit from his friend Brady. In June, 1873, he accompanied 

 Brady in a dredging excursion to the Scilly leles. In May, 1874, 

 his wife and he went to the Isle of Man to visit Mrs. E-obertson's 

 relations, while in the following July he was at work on the east 

 coast of England. In this latter expedition, which was under- 

 taken under a grant from the British Association, he was accom- 

 panied by Dr. Brady and the Rev. A. M. Norman. Later in the 

 same vear he and Mr. Norman visited the West of Ireland. 



In 1876 the British Association met at Glasgow. The pros- 

 pect of this influx of distinguished visitors had excited consider- 

 able activity in local scientific circles, and various publications 

 were issued as guides to the natural history and geology of the 

 district. Among these was a Catalogue of the Western Scottish 

 Fossils, compiled by James Armstrong, John Young, and David 

 Pvobertson, with an introduction by Professor John Young, M.D., 

 Glasgow University. In his preface to the volume Professor 

 Young remarks that " Mr. Robertson has supplied a great want 

 by his complete list of glacial fossils." 



His stores of information were also made available in the pre- 

 paration of another volume, entitled A Contribution towards a 

 Complete Catalogue of the Fauna and Flora of Clydesdale and the 

 West of Scotland, which was compiled under the auspices of the 

 Glasgow Societv of Field Naturalists. In this work the lists of 

 Recent Marine Mollusca, Actinozoa, and Foraminifera have Mr. 

 Robertson's name appended to them. Unfortunately, however, 

 the catalogue of Marine Mollusca was prepared by a member of 

 the Field Naturalists' Society who had merely noted the localities 



