846 
Index. 
Tait, (Professor P. G.), Note on the 
Mathematical Theory of Captain 
Weir’s new Azimuth Diagram, 359. 
Terquem (0. ), his Contributions to the 
Theory of Determinants, 764. 
Thermoelectric Properties of Wood’s 
Fusible Metal at its Melting Point, 
by Albert Campbell, B.A., 83. 
Thomson (J. Arthur), M.A., The His- j 
tory and Theory of Heredity, 91. 
I. The Facts of Inheritance,. 91. II. 
Problems of Heredity, 92. III. 
Theories of the Uniqueness of the 
Genn-Cells, 93. IV. Y. The Doc- 
trine of Germinal Continuity, 98. 
VI. The Problem of Reconstruction, 
104. VII. Inheritance of Acquired 
Characters, 106. Bibliography, 113, 
jP R S E 
Thomson (Sir William), P.R.S.E., 
Electrification of Air by Flame, 
262. 
On the Molecular Constitu- 
tion of Matter, 693. Space-Peri- 
odic Partitioning, 694. Boscovich’s 
Theory, 696. On Molecular Tactics 
of Crystals and of the Artificial 
Twinning of Iceland Spar, 707. 
Closest Packing of one Homogene- 
ous Assemblage of Equal and Similar 
Globes or Ellipsoids, 712. On the 
Equilibrium of a Homogeneous 
Assemblage of Mutually Attracting 
Points. 721. - 
Tribenzyl-Phosphine. See Letts (Prof. 
E. A. ), and R. F. Blake. 
Trigonometry and Astronomy, Fun- 
damental Tables in, by Edward 
Sang, LL.D., 249. 
Tropical Diseases. See Felkin (R. W.), 
M.D. 
Turner (Sir William), ThePlacentation 
of the Halicore Dugong, 264. 
Uric Acid. — Method of Demonstrating 
its Presence in the Contractile 
Vacuoles of some Lower Organisms, 
by Dr A. B. Griffiths, 131. 
Uterine Nerve Centre, Deductive Evi- 
dence of, and of its Location in the 
Medulla Oblongata, by James Oliver, 
M.D., 175. 
Vectors. — The Relation among Four 
Vectors, by Professor Tait, 88. 
— On the Scalar Relations con- 
necting Six, by the Rev. M. M. U. 
Wilkinson, 773. 
Virial Equation for Molecular Forces, 
being Part IV. of a Paper on the 
Foundations of the Kinetic Theory 
of Gases, by Professor Tait, 65. 
Vitellin, its Coagulation by Heat, by 
John Berry Haycraft, M.D., and 
C. W. Duggan, M.B., 361. 
Weir (Captain Patrick), Theoretical De- 
scription of a new Azimuth Diagram, 
354 ; with Note on the same by 
Prof. Tait, 359. 
Wilkinson (Rev. M. M. U.) On the 
Scalar Relations connecting Six 
Vectors, 773. 
Wood’s Fusible Metal at its Melting 
Point; Change in its Thermoelectric 
Properties, by Albert Campbell, 
B.A., 83. 
Woodhead(G. Sims),M.D., and Robert 
Irvine, F.C.S., Secretion of Car- 
bonate of Lime by Animals, 324. 
and Robert W. Gray, on the 
Stomach of the Narwhal (Monodon 
monoceros), 792. The (Esophagus, 
793 ; Cardiac Cavity, 799 ; True 
Digestive Cavities, 801 ; The Duo- 
denum, 805 ; Literature on the 
Stomach of Delphinidse, 807. 
Yaws, 301. 
Yellow Fever, 285. 
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