viii Contents. 



November 13, 1882. 



PAGB 



*0n the structure of the spleen. By J. N. Langley and C. S. Evans . 2<;i! 

 On the continuity of the protoplasm in the motile organs of leaves. By 



W. Gardiner . 2(>6 



November 27, 1882. 



On the complex multiplication of elliptic functions. By A. G. Greenhill 271 

 On certain points in the function of the cardiac muscle. By W. H. 



Gaskell . . : • . . • 277 



On the development of the Pollinium in Asclepias. By T. H. Corry . 287 

 *On some micro-organisms and their relations to disease. By G. F. 



Dowdeswell 298 



January 29, 1883. 



On the isochromatic curves of polarised light seen in a uniaxal crystal 



cut at right angles to the optic axis. By B. T. Glazebrook . . 299 



On a spectrophotometer. By R. T. Glazebrook 304 



On a common defect of lenses. By R. T. Glazebrook .... 308 

 On the motion of a mass of liquid under its own attraction, when the 



initial form is an ellipsoid. By W. M. Hicks 309 



On the functions of more than two variables analogous to tesseral har- 

 monics. By M. J. M. Hill 313 



Observations of the transit of Venus across the Sun, taken near 



Kingston, Jamaica. By J. B. Pearson 313 



February 12, 1883. 



Notice of Professor H. J. S. Smith by the President . . . .319 

 A new form of equation of the 16-nodal quartic surface. By Professor 



Cayley 321 



On the mean radius of coils of insulated wire. By Lord Rayleigh . 321 



On the invisibility of small objects in a bad light. By Lord Rayleigh . 324 



February 26, 1883. 



The original function of the canal of the central nervous system of ver- 



tebrata. By A. Sedgwick . 325 



*On a new microtome. By W. H. Caldwell 328 



On the development of the pelvic girdle and skeleton of the hind limb 



in the chick. By A. Johnson 328 



On the nitrogenous reserve-materials in parts of plants other than seeds. 



By M. C. Potter 331 



March 12, 1883. 



On certain points in the anatomy of Brachiopods. By W. H. Caldwell . 334 

 On the vascular system of Pelophilus (Boa) madagascariensis. By H. 



Gadow 336 



