CONTENTS OF VOL. XV. 



PAGE 



President's Addeess, 1878 ... ... ... ... xi— xxviii 



Aet. I. A New Form of Circuit Closer for the Firing of 



Torpedoes, by E. E. Joseph, Esq. ... ... 1 



II. Photographs on the Retina, by James Jamieson, M.D. 1—4 



III. Sir William Thomson's Electric Eeplenisher, by F. J. 



PlEANI, M.A. ... ... ... ... 4 



IV. Some Experiments in the Gold Bullion Assay, by 



Alfeed Mica Smith, B.Sc. ... ... ... 4—11 



V. On a New Form of Self-Registering Rain-gauge, by 



R. L. J. Elleey, F.R.S., &c. ... ... ... 12—13 



VI. Sir William Thomson's Form of Daniell's Constant 



Battery, by F. J. Pieani, M.A. ... ... ... 14 



VII. The Strength of Columns, by W. C. Keenot, M.A. ... 14—20 



VIII. A New Point of Resemblance in the Respiration of 



Plants and Animals, by James Jamieson, M.D. ... 21—27 



IX. Note of the Great Meteor of June 8th, 1878, by R. L. 



J. Elleey, F.R.S. ... ... ... ... 27—28 



X. The Perception of Colour, by James Jamieson, M.D. 28—34 



XI. On the supposed Intra-Mercurial Planet, by R. L. J. 



Elleey, F.R.S. ... ... ... ... 35—36 



XII. The Sounds of the Consonants, as indicated by the 



Phonograph, by Alex. Sutheeland, M.A. ... 37—42 



XIII. Experiments made on a Sample of Pig Iron received 



from the British and Tasmanian Iron Company, 

 Port Lempriere, Tasmania, by J. Cosmo Newbeey 

 and Feedeeic Dunn ... ... ... ... 43—49 



XIV. Formation of Hyalite by the Action of Ammonia, by 



J. Cosmo Newbeey, B.Sc. ... ... ... 49—51 



1878 ... ... ... 58—59 



Laws ... ... ... .. ... ... ... 60—70 



Membees ... ... ,., ... ... ... 71 — 75 



Institutions, &c., Receiving Copies of " Teansactions" ... 76—79 



