LIST OF ILLUSTRATIONS. 
Plates 1 to 11 . —Mr. W. K. Brooks on Lucifer: a Study in Morphology. 
Plates 12 to 18.—Mr. W. K. Parker on the Structure and Development of the Skull 
in Sturgeons, 
Plates 19 and 20 . —Mr. G. H. Darwin on the Stresses due to the Weight of 
Continents and Mountains. 
Plates 21 to 29. — Messrs. F. M. Balfour and W. N. Parker on the Structure and 
Development of Lepidosteus. 
Plates 30 to 38. — Mr. W. K. Parker on the Development of the Skull in Lepidosteus 
osseus. 
Plates 39 to 47.■ —Dr. J. W. Dawson on the Results of Recent Explorations of Erect 
Trees containing Animal Remains in the Coal-formation of Nova Scotia. 
Plate 48. —Lord Rayleigh on the British Association Unit of Resistance in Absolute 
Measure. 
Plates 49, 50. —Mr. W. Bevan Lewis on the Comparative Structure of the Brain 
in Rodents. 
Plate 51. —Professor Owen on portions of a Tusk of a Proboscidian Mammal ( Notele - 
phas australis, Owen). 
Plate 52. —Messrs. J. Milne and T. Gray on Seismic Experiments. 
Plate 53.— Dr. W. Flight on the Meteorites of Cranbourne, Rowton, and Middles¬ 
brough. 
Plates 54 to 58.— Mr. A. Fraser on the Development of the Ossicula auditus in the 
Higher Mammalia. 
Plates 59 to 63.— Mr. A. Sanders on the Anatomy of the Central Nervous System in 
Vertebrate Animals. 
Plates 64, 65.—Messrs. A. Waller and A. de Watteville on the Influence of the 
Galvanic Current on the Excitability of the Motor Nerves of Man. 
Plates 66 to 70. — Dr. W. H. Gaskell on the Rhythm of the Heart of the Frog, and 
on the Nature of the Action of the Vagus Nerve. 
Plates 71 to 82. —Mr. J. W. Hulke on the Osteology of LLypsdophodon Foxii. 
Plates 83 to 95.— Dr. H. Watney on the Minute Anatomy of the Thymus. 
Plate 96. —Mr. G. F. Rod well on the Effects of Heat on certain Haloid Compounds 
of Silver, Mercury, Lead, and Copper. 
