1008 
Index. 
Mixture of Two Systems of Spheres, 
621. 
Tait (Professor) on a Theorem in the 
Science of Situation, 625. 
on the Collision of Elastic 
Spheres, 655. 
Effect of External Pressure on 
a System of Colliding Spheres, 856. 
on some Definite Integrals, 686. 
— on Amagat’s Manometre a 
Pistons fibres, 947. 
Tay Estuary, its Salinity, by Mr Hugh 
Robert Mill, 347. 
Teleostean Embryos, Kuppfer’s Vesicle 
in, by Mr J. T. Cunnningham, 4. 
Teleosteans. The Formation of Ger- 
minal Layers in Teleostei, by Mr 
George Brook, F.L.S., 590. 
The Eggs and Early Stages of 
some Teleosteans, by Mr J. T. 
Cunningham, 904. 
Termite (The) as the Tropical Ana- 
logue of the Earthworm, by Pro- 
fessor Henry Drummond, 137. 
Thalen (Professor Tobias Robert) 
Elected a Foreign Honorary Fellow 
of the Society, 783. 
Thermal Conductivity of Ice, by Mr A. 
Crichton Mitchell, 592. 
Thermometer Screens, by Mr John 
Aitken, 632. 
Thomson ( J. Arthur), M. A. , Anatomy 
of Suberites domuncula, 803. 
and Mr Patrick Geddes, History, 
and Theory of Spermatogenesis, 803. 
Thomson (Sir William). The Distri- 
bution of Energy among Colliding 
Groups of Molecules, 2. 
on the Dynamics of Reflection 
and Refraction in the Wave-Theory 
of Light, 2. 
on Kerr’s Discovery regarding 
the Reflection of Light from a Mag- 
netic Pole, 2. 
on Energy inV ortex Motion, 1 1 4. 
• on the Motion of a Liquid 
within an Ellipsoidal Hollow, 370. 
on the Mutual Attraction 
between two Pieces of Matter at 
Distances of less than Ten Micro- 
Millimetres, 625. 
— on a Hew Form of Portable 
Spring Balance for the Measurement 
of Terrestrial Gravity, 63. 
Tides. On the Theory of the Tides, 
by Edward Sang, LL. D. , 4. 
Tungsten, by Dr John Waddell, 823. 
Tunicata, the Phylogeny of, by Pro- 
fessor W. A. Herd man, 444. 
Turner (Prof. Sir William), F.R.SS. 
L. & E. The Relations of the 
Alveolar Form of Cleft Palate to the ( 
Incisor Teeth and the Intermaxil- 
lary Bone, 15. 
Turner (Prof.). The Sacral Index in 
various Races of Mankind, 378. 
Notice of a Second Specimen 
of Sowerby’s Whale ( Mesoplodon 
bidens), from Shetland, 279. 
Urea Formation, its relation to Bile 
Secretion, by Mr D. Noel-Paton, 
M.B., 655. 
Vaccinia. See Buist (Dr J. B.), 603. 
Variola. See Buist (Dr J. B.), 603. 
Velocity. The Mean Square Velocity 
of Two Points whose Velocities are p 
and q is p 2 + q 2 , by Professor Tait, 21. 
Voltaic Cell, its Electromotive Force 
with Moving Plates, by Mr A. P. 
Laurie, 686. 
Waddell (Dr John) on Tungsten, 823. 
Waganda Tribe of Central Africa, 699. 
Water. Effect of Pressure on Maxi- 
mum Density Point of Water, by 
Professor Tait, 527. 
Water-Bottles, with Description of a 
Hew Form of Slip Water-Bottle, by 
Mr H. R. Mill, 539. 
Water, Compressibility of, by Pro- 
fessorYTait, 120, 155. 
Thermal Effects of Tension in 
Water, by Mr G. H. Stewart, 157. 
Temperature of the Water of 
the Firth of Forth, by Mr H. R. 
Mill, 157. 
Repetition of Berthelot’s Ex- 
periment on the Tenacity of Water, 
and its Adhesion to Glass, by Mr 
H. Creelman, 546. 
Woodhead (Dr G. Sims) and Mac- 
fadyean (J.), M.R.C.V.S., on the 
Contraction of the Auricles of the 
Pig’s Heart, 323. 
and Hare (Arthur W.), M.B., 
Vital Relations of Micro-Organisms 
to Tissue Elements, 269. 
Wool, and other allied Fibres, Varia- 
tions in the Structure of, by Dr F. 
H. Bowman, 657. 
York Place, Extraordinary Accident 
at, 23. 
Yoshida (Hikorokuro) on the Che- 
mistry of Japanese Lacquer, 175. 
Zinc, Peroxide of, 146. 
Zinc and Iodine, their Heats of Com- 
bination, by Mr A. P. Laurie, 328. 
Zinc-Copper Alloys. See Laurie (Mr 
A. P.), 62. 
Zodiacal Light, by Professor Michie 
Smith, 114. 
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