vi Contents. 



PAGE 



On a method of comparing affinity -values of Acids. By H. J. H. Fenton 



and H. 0. Jones . 108 



On Isomeric Esters of Dioxynu a..j Acid. By H. J. H. Fenton and J. H. 



Ryffel 109 



Note on the Constitution of Cellulose. By H. J. H. Fenton and Miss 



Mildred Gostling 110 



On some substituted ammonium compounds of the type NR' R" R%" X. 



By H. 0. Jones. (Communicated by Mr Fenton) . . . .111 

 On Molecular Weight of Glycogen. By H. Jackson . . . .115 

 On the condensation of formaldehyde and the formation of fi-acrose. By 



H. Jackson 117 



On the effect of a magnetic field on the resistance of thin metallic films. 



By J. Patterson. (Communicated by Professor Thomson) . .118 

 On the Theory of Electric Conduction through thin metallic films. By 



Prof. J. J. Thomson 120 



The Prevention of Malaria. By Dr J. W. W. Stephens . . .123 



A Theorem on Curves in a Linear Complex. By J. H. Grace . . 132 



Preliminary Note on the Function of the Root-tip in relation to Geo- 



tropism. By Francis Darwin 134 



Note on some Factors in the Spore-formation of Acrospeira mirabilis 



(Berk, and Br.). By R. H. Biffen 136 



On a reserve Carbohydrate, which produces Mannose, from the bulb of 



Lilium. By J. Parkin 139 



The Colour Vision of the Eskimo. By W. H. R. Rivers . . .143 



Variations in the Ossification of the Occipital Bone. By Prof. A. 



Macalister 150 



Geometrical Notes on Theorems of Halley and Fregier. By Dr C. Taylor 153 

 Notes on new and interesting Plants from the Malay Peninsula. By R. 



H. Yapp 159 



Pignoration of coordinates" as a problem in linear substitutions. By 



T. J. I' A. Bromwich ...... . 163 



On an attempt to detect radiation from the surface of wires carrying 



alternating currents of high frequency. By 0. W. Richardson . 168 

 Note on the Magnetic Deflection of Cathode Rays. By H. A. Wilson . 179 

 On a Diminution of the Potential Difference between the Electrodes of a 



Vacuum Tube, produced by a Magnetic Field at the Cathode. By 



J. E. Almy 183 



Some Experiments upon Beams under endlong compression. By H. E. 



Wimperis 191 



The Oscillations of a Fluid in an Annular Trough. By B. Cookson . 200 

 On a new species of Bothriocephalus (With Plate III.). By A. E. Shipley 209 

 On the Rate of Growth of some Corals from Fiji. By J. Stanley 



Gardiner 214 



On the breeding habits of Xenopus laevis Daud. By E. J. Bles . . 220 



