VI 



Page 



Studies iu the Morphology of Spore-producing Members. Preliminary 

 Statement on the Lycopodinse and Ophiglossacese. By F. O. Bower, 



F.E.S 265 



List of Presents . ... 274 



On the Demonstration of the Presence of Iron in Chromatin by Micro- 

 Chemical Methods. By A. B. Macallum, M.B., Ph.D., Lecturer in 

 Physiology in the University of Toronto 277 



On the Bases (Organic) in the Juice of Flesh. Part I. By George 

 Stillingfleet Johnson, M.E.C.S., F.C.S., F.I.C 287 



Contributions to the Chemistry of Chlorophyll. No. IV. By Edward 

 Schimck, F.E.S 302 



No. 305. January 21, 1892. 



Note on the Audibility of single Sound Waves, and the Number of 

 Vibrations necessary to produce a Tone. By E. F. Herroun and 

 Gerald F. Yeo, F.E.S 318 



On the Mechanism of the Closure of the Larynx. A Preliminary Com- 

 munication. By T. P. Anderson Stuart, M.D., Professor of Physio- 

 logy, University of Sydney, N.S.W., Australia 323 



Additional Observations on the Development of Apteryx. By T. Jeffery 

 Parker, B.Sc., F.E.S., Professor of Biology in the University of Otago, 

 Dunedin, New Zealand 340 



On a Differential Electrostatic Method of measuring High Electrical 

 Eesistances. By Major Cardew, E.E 340 



On the Electrolysis of Silver Nitrate in Vacuo. By Arthur Schuster, 

 F.E.S., and Arthur W. Crossley, B.Sc 344 



A new Mode of Eespiration in the Myriapoda. By F. G. Sinclair 

 (formerly F. G. Heathcote), M.A., Fellow of the Cambridge Philo- 

 sophical Society 358 



The " Ginger-beer Plant," and the Organisms composing it : a Contri- 

 bution to the Study of Fermentation-yeasts and Bacteria. By H. 

 Marshall Ward, M.A., F.E.S., F.L.S., Professor of Botany at the 

 Forestry School, Eoyal Indian Engineering College, Cooper's Hill .... 358 



List of Presents...., ,.. 359 



January 28, 1892. 



On the Melting Points of the Gold-Aluminium Series of Alloys. By W. 



C. Eoberts-Austen, C.B., F.E.S * 367 



Colour Photometry. Part III. By Captain W. de W. Abney, C.B., 



E.E., D.C.L., F.E.S., and Major-General Testing, E.E., F.E.S 369 



On certain Ternary Alloys. Part V. Determination of various Critical 

 Curves, and their Tie-lines and Limiting Points. By C. E. Alder 

 Wright, D.Sc., F.E.S., Lecturer on Chemistry and Physics in St. Mary's 

 Hospital Medical School 372 



Note on some Specimens of Eock which have been exposed to High 

 Temperatures. By Professor T. G. Boimey, D.Sc., LL.D., F.E.S C95 



List of Presents 403 



