Page 



On the Calculation of the Coefficient of Mutual Induction of a Circle 

 and a Coaxial Helix, and of the Electromagnetic Force between a 

 Helical Current and a Uniform Coaxial Circular Cylindrical Current 

 Sheet. By Professor J. Viriamu Jones, F.E.S 192 



Meeting of March 31, 1898 205 



No. 395. 



Meeting of April 28, 1898, and List of Papers read 206 



On the Meteorological Observatories of the Azores. By H.S.H. Prince 

 Albert I of Monaco. Communicated by J. Y. Buchanan, F.RS 206 



A Compensated Interference Dilatometer. By A. E. Tutton, Assoc. 

 E.C.S. Communicated by Captain Abney, C.B., F.RS. 208 



Meeting of May 5, 1898, and List of Papers read 212 



Observations on the Action of Anaesthetics on Vegetable and Animal 

 Protoplasm. By J. B. Farmer, M.A., and A. D. Waller, M.D., 

 F.E.S 213 



On certain Structures formed in the Drying of a Fluid "with Particles 

 in Suspension. By Catherine A. Eaisin, B.Sc. Communicated by 

 Professor T. G. Bonney, F.E.S. (Plate 2) 217 



The Eelations between the Hybrid and Parent Forms of Echinoid 

 Larvae. By H. M. Vernon, M.A., M.B. Communicated by Pro- 

 fessor E. Eay Lankester, F.E.S 228 



No. 396. 

 Meeting of May 12, 1898, and List of Papers read 231 



A Calorimeter for the Human Body. By William Marcet, M.D., 



F.E.S 232 



An Experimental Enquiry into the Heat" given out by the Human 

 Body. By W. Marcet, M.D., F.E.S., and E. B. Floris, F.C.S 242 



Preliminary Note on the Liquefaction of Hydrogen and HeHum. By 

 James Dewar, M.A., LL.D., F.E.S., Fullerian Professor of Chemistry 

 in the Eoyal Institution , 256 



Effects of Prolonged Heating on the Magnetic Properties of Iron. By 

 S. E. Eoget, B.A. Communicated by Professor Ewing, F.E.S 258 



On the Connection of Algebraic Functions with Automorphic 

 Functions. By E. T. Whitaker, B.A., Fellow of Trinity College, 

 Cambridge. Communicated by Professor A. E. Forsyth, Sc.D., 

 F.RS I 267 



A Study of the Phyto-Plankton of the Atlantic. By George Murray, 

 F.E.S., Keeper of Botany, British Museum, and V. H. Blackmail, 

 B.A., F.L.S., Hutchinson Student, St. John's College, Cambridge, and 

 Assistant, Department of Botany, British Museum 269 



