4 Proceedings of Eoyal Society of Edinburgh. [sess. 
The Meteorology of Ben Nevis has been further illustrated by 
Mr Omond, Mr J. Y. Buchanan, and Dr Buchan. 
From Prof. A. Crichton Mitchell we have had a paper on the 
Convection of Heat. 
Professor Little has given us a paper on Knots, which used to be 
a favourite subject with Professor Tait, and treated non-alternate 
± Knots of the Tenth Order. We are thankful to Professor Little 
for a paper of this kind, which involves prolonged labour. 
From Dr Muir we have had many papers dealing with abstruse 
theorems in Determinants. 
Sir William Turner has given us papers on the Craniology of 
certain Tribes of the North-East Frontier of India and of Burma, 
and on the Decorated Skulls from New Guinea, with their 
mysterious markings. 
Dr Baildon has favoured us with a literary paper — and I wish 
we had more literary papers — on the Modification of Yowel Sounds 
by the consonants with which they are in apposition, and has 
illustrated the subject by the Dimes in the Poems of the Scottish 
poet Dunbar, of whom it may be said, as of another Scottish poet 
of the same period : — 
“ Still is thy name of high account, 
And still thy verse has charms.” 
The following Address was presented to Sir George Gabriel 
Stokes, on the occasion of the Jubilee celebration of his appoint- 
ment as Lucasian Professor of Mathematics in the University of 
Cambridge : — 
“To Sir George Gabriel Stokes, Baronet, Lucasian Professor 
of Mathematics in the University of Cambridge. 
“ On behalf of the Council of the Royal Society of Edinburgh, we 
congratulate you heartily on the approaching completion of the 
fiftieth year of your tenure of the Lucasian Professorship. We 
desire to express our conviction that much of the great advance in 
mathematical and experimental development of Natural Philos- 
ophy which has been made in the nineteenth century is directly, 
or indirectly, due to you. Your published writings on Mathe- 
matical and Experimental Physics form an imperishable monument 
