1284 
teristics of the Races and Principal Crosses in the British Isles, and obtaining 
‘Illustrative Photographs with a view to their publication ;—Report on the present 
state of our knowledge of Spectrum Analysis ;—Report of the Committee for pre- 
paring a new series of Wave-length Tables of the Spectra of the Elements ;—On the 
Connection between Sun-spots and Terrestrial Phenomena;—On the Seat of the 
Electromotive Forces in the Voltaic Cell ;—On the Archzan Rocks of Great Britain ; 
—On the Concordance of the Mollusca inhabiting both sides of the North Atlantic 
and the intermediate Seas ;—On the Characteristics of the North American Flora; 
On the Theory of the Steam Engine ;—Improvements in Coast Signals, with Supple- 
mentary Remarks on the New Eddystone Lighthouse ;—On American Permanent 
Way. 
Together with the Transactions of the Sections, Lord Rayleigh’s Address, and 
Recommendations of the Association and its Committees. 
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