VI CONTENTS. 



Page 



Heat, 



Mr. Donald MTablane's description of Experiments made in the Physical 

 Laboratory of the University of Glasgow to determine the Surface Conduc- 

 tivity for Ileat of a Copper Ball 44 



Mr. William Ladd on a Respirator for Use in Extinction of Fires 44 



Professor Balfoub Stewart on the Temperature-equilibrium of an Enclosure 

 in which there is a Body in Visible Motion 45 



Professor Ch. V. Zexgee on a new Steam-gauge 45 



Electeicitt and Magnetism. 



Jlr. Thomas Bloxam on the Influence of Clean and Unclean Surfaces in Vol- 

 taic Action 47 



Mr. Latimeb Clabk on a new Form of Constant Galvanic Battery 47 



Dr. J. P. Joule's Notice of and Observations with a New Dip-circle 48 



Professor Tait on Thermo-electricity 48 



INIr. C. F. Varley on a Metliod of Testing Submerged Electric Cables 48 



Professor Cn. V, Zengeb on a New Key for the Morse Printing Telegraph . . 48 



Meteokology. 



Dr. Buys Ballot on the Importance of the Azores as a Meteorological Sta- 

 tion 49 



Dr. Alexander Brown on theMean Temperatm-e of Arbroath. Lat. 5(P33'35'' 

 North, Long. 2= 35' 30" W. of Greenwich 60 



Dr. William B. Carpenter on the Thermo-Dynamics of the General Oceanic 

 Circulation " 61 



Rev. Professor Challis on the Mathematical Theory of Atmospheric Tides . 51 



Professor Colding's Remarks on Aerial Currents 53 



Professor J. D. Everett on Wet- and Dry-bidb Formula 54 



on the General Circulation and Distribution of the 



Atmosphere 64 



M. Janssen's Observations Physiques en Ballon 65 



Mr. W. Pengelly on the Influence of the Moon on the Rainfall 65 



Mr. R. Russell on the Inferences drawn by Drs. !Rfagnxis and Tyndall from 

 their Experiments on the Radiant Properties of Vapour 66 



Mr. William A, Traill on Parhelia, or Mock Suns, observed in L-eland . . 56 



The Peogbess of Science. 



Lieut.-Col. A. Strange on Government Action on Scientific Questions .... 56 

 Kev. W. TuCKYTELL on the Obstacles to Science-Teaching in Schools 57 



CHEMISTRY. 



Address by Professor Andrews, F.R.S.L. & E., President of the Section. ... 59 

 Mr. Thomas Ainsworth on the Facts developed by the Working of Hsema- 

 tite Ores in the Ulverstone and Whitehaven Districts from 1844-71 66 



