738 
Proceedings of the Royal Society 
other papers on the Lichens then followed, several being communi- 
cated to this Society. For one of these, viz., his Memoir on the 
Spermogones and Pycnides, the Neill Prize was awarded in 1859. 
His various papers were illustrated with plates drawn by himself, 
and though the nature of his subject did not admit of much artistic 
display, his representations were both accurate and well finished . 
His labours amongst the Lichens did much to place the study of 
that department on a scientific basis, and greatly extended our 
knowledge of their structure and economy. 
In his early days a considerable traveller, he explored the 
mineralogical and geological features of the Hartz mountains, and 
made large collections. He also in subsequent years visited many 
other places on the Continent, besides Iceland and the Eseroe Islands, 
America, and Egypt. Moreover, his health, which had never been 
robust, failing in 1861, he obtained a year’s leave of absence, which 
he spent in visiting New Zealand and Australia, making extensive 
collections, and laying the foundation of many papers on the 
Botany and Geology of New Zealand. He also stimulated the 
colonists by a lecture, at Otago, on “ The Place and Power of Natural 
History in Colonisation.” In the same way his visits to Iceland 
and the Eseroe Islands formed the basis of several botanical and 
geological papers, and subsequently enabled him to deal more easily 
with the Lichen-flora of Greenland. 
In viewing the number and variety of Dr. Lindsay’s botanical 
and geological communications, one is struck by the extraordinary 
industry that characterised him. His active mind was ever on the 
stretch, and his facile pen never failed to make the best use of 
the materials at his disposal. The field covered by his labours, 
however, was much too extensive for the production of work of 
equal value in every case, and the pressure on his time occasionally 
prevented the necessary consolidation of prolix articles. Taken all 
in all, however, his botanical labours do him infinite credit, and 
have greatly advanced the subject he took under his care. It will 
be long before the Lichens find so able and so accomplished a 
worker. He was, indeed, the Nylander of Scotland. In accord- 
ance with his instructions, his valuable collection of Lichens was 
presented by his trustees to the University of Edinburgh, and is 
now in the Museum in the Botanic Garden. 
