IV 
Contents. 
PAGE 
The History and Theory of Heredity. By J. Arthur Thomson, 
Esq., M.A., . . . . . • • 
On the Anatomy and Histology of Phreoryctes. By Frank E. Bed- 
dard, Esq., M.A., Prosector to the Zoological Society of London, 
Lecturer on Biology at the Medical School of Guy’s Hospital 
Note on the Transformation of Ciliated and Stratified Squamous 
Epithelium as a result of the Application of Friction. By Dr 
John Berry Hay craft and E. W. Carlier, Esq., M.B., B.Sc., 
Observations on the Metabolism of Man during Starvation. By 
Noel Paton, M.D., and Balph Stockman, M.D., 
A Method of Demonstrating the Presence of Uric Acid in the Con- 
tractile Vacuoles of some Lower Organisms. By Dr A. B. 
Griffiths, F.R.S. (Edin.), F.C.S. (Lond. and Paris), Member of the 
Physico-Chemical Society of St Petersburg, &c., 
On Improvements in the Apparatus for Counting the Dust Particles 
in the Atmosphere. By John Aitken, Esq., Darroch. (With 
Four Plates), ...... 
The Prolonged Action of Sea- Water on Pure Natural Magnesium 
Silicates. By Alexander Johnstone, Esq., F.G.S., 
Deductive Evidence of a Uterine Nerve Centre, and of the Location 
of such in the Medulla Oblongata. By James Oliver, M.D., 
F.R.S.E., 
On the so-called “ Liver ” of Carcinus moenas. By Dr A. B. 
Griffiths, F.R.S. (Edin.), F.C.S. (Lond. and Paris), Member of the 
Physico-Chemical Society of St Petersburg, &c., . 
On the Air’s Resistance to an Oscillating Body (its Influence on 
Time-Keepers). By Edward Sang, LL.D., ... 
A Contribution to the Chromatology of the Bile. By John Berry 
Haycraft, M.D., D.Sc., and Harold Scofield, Esq., M.B., . 
On the Identity of Hofmann’s “ Dibenzyl-Phosphine ” with Oxide 
of Tribenzyl-Phosphine, and on some other Points connected 
with the Phosphorised Derivations of Benzyl. By Professor 
Letts and R. F. Blake, Esq., Queen’s College, Belfast, 
Differentiation of any (Scalar) Power of a Quaternion. By Alex- 
ander M £ Aulay, Esq., Ormond College, Melbourne. Communi- 
cated by Professor Tait, . . . . 
Note on Mr M c Aulay’s Paper. By Professor Tait, . 
Additional Remarks on the Virial of Molecular Force. By Pro- 
fessor Tait, ........ 
The Theory of Determinants in the Historical Order of its Develop- 
ment. By Thomas Muir, M.A., LL.D., .... 
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