Contents. 
May 6, 1889. 
On the Binodal Quartic and the Graphical Representation of the Elliptic 
Functions. By Prof. Cayley : 
A method of discovering Particular Sontion: af east Dieneaifell 
Equations, that satisfy Specified Boundary Conditions. By J. Brill 
May 20, 1889. 
On the Change of Shape in Re ee Pith. ee Miss A. Bateson and 
F. Darwin : 
On the Thickening of the Stem in various species of Toners By 
M. ©. Potter and W. Gardiner . 
On a new species of Dinophilus. By S. F. Mane : : é 
On the Formation of Struvite by Micro-organisms. By H. Robinson . 
June 3, 1889. 
Note on the Determination of Arbitrary Constants which appear as 
Multipliers of Semi-Convergent Series. By Prof. Sir G. G. Stokes. 
On the Lowering of the Freezing-points of Tin and Sodium caused by 
the Addition of other Metals. By C. T. Heycock and F. H. Neville 
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