30 ‘TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 
Fossiliferous Beds of Scotland. This proved a most laborious 
undertaking, which extended over many years. Its results are 
published in a series of papers, five in number, contained in the 
Transactions of the Geological Society of Glasgow, vols. ii. to v. 
In course of time Messrs. Crosskey and Robertson were joined by 
Dr. G. S. Brady of Sunderland, one of the leading British 
authorities on the Entomostraca. Their joint labours resulted in 
the publication of a Monograph of the Post-Tertiary Entomostraca of 
Scotland, which was issued by the Paleeontographical Society in 1874. 
Tn 1858 Mr. Robertson suffered from severe illness. The strain 
of anxiety and trouble which this cast upon his wife had the effect 
of undermining her health, and in the following year she was 
involved in a prolonged illness, from which she very slowly 
recovered. Her medical attendant advised her speedy removal 
from Glasgow to Cumbrae, and intimated that she could never 
hope to be able to return to assist her husband in his warehouse 
in the city. It was therefore resolved that the hardware and 
fancy goods department of the business, which had hitherto 
been carried on by Mr. and Mrs. Robertson, should be sold, and 
that the glass and china department should be taken over by 
Mr. M‘Dougall and his sons. 
In 1860 Mr. Robertson finally retired from business; and as 
his wife’s health still continued very unsatisfactory, it was arranged 
that she should be taken t6 Cumbrae in mid-winter. 
The climate of Cumbrae proved beneficial in restoring Mrs. 
Robertson to health, so the house known as “Fern Bank,” in 
Kames Bay, Millport, was acquired as a residence for the family 
during holiday seasons. While their two sons, David and Thomas, 
were still at school, and for some time after they had commenced 
business, a house in the city was retained. Owing to the state 
of his wife’s health, in 1882 Mr. Robertson resolved to remove to 
the country, and he accordingly acquired the residence of Glendale, 
Uddingston ; but, having found that in winter this locality did 
not suit his own health, he parted with the house to his elder son, 
and determined to make his home at Millport. Some additions 
were therefore made to Fern Bank, which since 1886 has been 
his permanent residence. 
Having been set free from the cares of business, Mr. Robertson 
and his wife devoted their leisure to natural history. Besides 
