vi CONTENTS. 
VII.—On some New Bases of the Leucoline Series. Part IlI.—The 
Action of Iodide of Methyl on Tetracoline, Pentacoline, 
Hexacoline, Heptacoline, and Octacoline. By G. Carr Rosin- 
son, F.R.S.E., and W. L. Goopwin, 
VIIL—On the Transmission of Sound by Loose Electrical Contact. By 
JAMES Biytu, M.A., ‘ 
IX.—The Solar Spectrum in 1877-78, with some practical idea of tis 
probable temperature of Origination. By PtaAzzi SmytTu, 
F.R.S.E. and Astronomer Royal for Scotland. (Plate IT.), 
X.—On the Structure and Affinities of the Platysomide. By Ramsay 
H. Traquatr, M.D., F.R.S.E., Keeper of the Natural 
History Collections in the Museum of Science and Art, 
Edinburgh. (Plates III.-VI.), 
XI.—The Anatomy of the Northern Beluga (Beluga catodon, Gray ; 
Delphinapterus leucas, Pallas) compared with that of other 
Whales. By Morrison Warson, M.D., F.RS.E., and 
ALFRED H. Youna, M.B., &c., of the Owens ee Man- 
chester. (Plates VII. and VIL), 
XII.—On the Carboniferous Volcanic Rocks of the Basin of the Firth of 
Forth—their Structure in the Field and under the Micro- 
scope. By Professor Grrxiz, LL.D., F.R.S., Director of the 
Geological Survey of Scotland. (Plates [X.-XIL.) . 
PART II. (1879-80.) 
XIIL.—On Minding’s System of Forces. By Professor CHRYSTAL, 
XIV.—On the Action of Sulphide of Potassium upon Chloroform. By 
W. W. J. Nicot, M.A. Communicated by Professor Crum 
Brown, ' , } 
PAGH 
231 
345 
393 
437 
alg 
