IV 
Molecular Constitution of Matter. By Sir William Thomson, „ . 
Continued Observations on the Progression and Rotation of Bivalve Molluscs, 
and of detached Ciliated Portions of. them. By D. M‘Alpine, Esq. 
Communicated by Dr G. Sims-Woodhead. (With Two Plates), . 
Strophdnthus liispidus — continued : — Pharmacological Action. By Professor 
Thomas R. Fraser, M.D., . . 
The Theory of Determinants in tile Historical Order of its Development. By 
Thomas Muir, M.A., LL.D., ...... 
On the ’Scalar Relations connecting Six Vectors. By the Rev. M. M. U. 
Wilkinson. Communicated by Professor Tait, .... 
Report on Atmospheric Circulation, based on the Observations made on Board 
H.M.S. “ Challenger,” 1873-76. By Alexander Buchan, LL.D., 
On the Stomach of the Narwhal ( Monodon monoceros). By G. Sims Wood- 
head, M.D., and Robert W. Gray, Esq. (With Four Plates), 
Meetings of the Royal Society — Session 1888-89, . 
Donations to the Library, . . . . . . . 
Index, . . 
Title and Contents. 
page 
693 
725 
743 
748 
773 
786 
792 
807 
823 
841 
