510 
Index. 
commonly called Lummer and 
Brodhun’s Photometer, by C. G. 
Knott, 12-14. 
Tait (Professor P. G. ). On the Claim 
recently made for Gauss to the 
Invention .(not the Discovery) of 
Quaternions, 17-23. 
Obituary Notice of, by Lord 
Kelvin, 498-504. 
Tetrabothrium auriculatum , by 0. 
von Linstow, 158. 
torulosum, by 0. von Linstow, 
158. 
Thermo-electric Properties of Solid 
and Liquid Mercury, by W. Peddie 
and Alex. B. Shand, 15, 422. 
Tissues (Normal and Pathological). 
Presence of Enzymes in, by Dr J. 
S. M : Kendrick, ’68. 
Torsional Constants of Iron and 
Steel, by W. Peddie and A. B. 
Shand, 16. 
Traquair (Dr R. H.). On Fossil 
Fishes collected by Dr Flett in the 
Old Red Sandstone of Shetland 
( Title only), 446. 
On Dipnoi from the Upper 
Old Red Sandstone of Scotland 
( Title only), 446. 
On the Distribution of Fossil 
Fishes in the Carboniferous Rocks 
of the Edinburgh District {Title 
only), 448. 
Traquair (Dr R. H.). Supplementary 
Report on Fossil Fishes collected 
by the Geological Survey of Scot- 
land in the Silurian Rocks of the 
South of Scotland ( Title only), 451. 
Awarded Makdougall-Bris- 
bane Prize for 1898-1900, 451. 
See Burgess (James). 
Turner (Sir William). Contributions 
to the Craniology of the People of 
India. Part II. The Aborigines 
of Chuta Nagpur, of the Central 
Provinces and the People of Orissa 
[Abstract), 161-162. 
Tweedie (Charles). Note on Dr 
Muir’s Paper on a Peculiar Set of 
Linear Equations, 261-263. 
Ultra-Neptunian Planet, by Professor 
George Forbes, 370-374. 
Ulva latissima (Seaweed), and its Re- 
lation to the Pollution of Sea- 
Water by Sewage, by Professor 
Letts and John Hawthorne, 268- 
295. 
Williamson (George). Notice of, in 
President’s Address, 11. 
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