TRANSACTIONS (NEW SERIES). 
(Recently Published.) 
VOLUME I. 
Part 
19.—Paleo-Geological and Geographical Maps of the British Islands and the adjoining parts of 
the Continent of Europe. By Epwarp Hv11, t1.p., F.R.s., &c., Director of the Geological 
Survey of Ireland, and Professor of Geology in the Royal College of Science, Dublin. 
Plates XXII. to XX XV. (November, 1882.) 
20.—Notes on the Physical Appearance of the Planet Mars during the Opposition in 1881. 
Accompanied by Sketches made at the Observatory, Birr Castle. By Orro BoxrppickeEr, 
ru.p. Plates XXXVI. and XXXVII. (December, 1882.) 
21.—Notes on the Aspect of Mars in 1882. By C. E. Burton, B.a., F.R.A.s., as seen with a 
Reflecting Telescope of 9-inch Aperture, and Powers of 270 and 600. Plate XX XVIII. 
(January, 1883.) 
22.—On the Energy expended in Propelling a Bicycle. By G. Jounsronz Sroney, D.sC., F.R.S., 
a Vice-President of the Society; and G. Geratp Sronry. Plates XXXIX., XL., and 
XLI. (January, 1883.) 
23.—On Electromagnetic Effects due to the Motion of the Earth. By Grorcr Francis 
FirzGrRaLp, M.A., F.T.c.D., Erasmus Smith’s Professor of Experimental Science in the 
University of Dublin. (January, 1883.) 
24.—On the Possibility of Originating Wave Disturbances in the Ether by Means of Electric 
Forces :—Corrections and *Additions. By Grorcr Francis FirzGerap, M.A., F.T.C.D. 
(January, 1883.) 
25.—On the Fossil Fishes of ‘the Carboniferous Limestone Series of Great Britain. By J. W. 
Davis. Plates XLII. to LXV. (September, 1883.) [With Title-page to Volume. | 
VOLUME II. 
1.—Observations of Nebulz and Clusters of Stars, made with the Six-foot and Three-foot 
Reflectors at Birr Castle, from the year 1848 up to the year 1878. Nos.1&2. By the 
Riegur Hon. rue Ear or Ross, tu.v., D.c.L., F.R.Ss. Plates I. to TV. (August, 1879.) 
No. 38. Plates V. and VI. (June, 1880.) 
2.—On Aquatic Carnivorous Coleoptera or Dytiscide. By Dr.SHarp. Plates VII. to XVIII. 
(April, 1882.) [| With Title-page to Volume. | 
VOLUME III. 
1.—On the Influence of Magnetism on the Rate of a Chronometer. By Orro Borppicker, PH.D. 
(September, 1883.) Plate I. 
