DIRECTIONS TO THE BINDER FOR PLACING THE PLATES IN THIS VOLUME. 



Plate 



TT ' I Illustrating Mr J. Clerk Maxwell's Paper on Reciprocal Figures, Frames, and 

 TT y j Diagrams of Forces, To face page 1 



( Illustrating the Eev. Thomas Brown's Paper on the Old River Terraces of the 

 IV. < Earn and Teith, viewed in connection with certain Proofs of the Antiquity 



( of Man, 149 



V i 



VI. (Illustrating Professor Turner's Paper, Account of the Great Finner Whale 



VII. f (Balainoptera Sibbaldii) stranded at Longniddry. Part I. — The Soft Parts, 197 



VIII. ) 



IX. ^ Illustrating Dr W. C. M'Intosh's Paper on some Points in the Structure of 

 X. j TuUfex, 253 



XI. \ 



XII I 

 Yttt' Illustrating Dr James Bell Pettigrew's Paper on the Physiology of Wings, 



Yyv ) being an Analysis of the Movements by which Flight is produced in the 



Y^t Insect, Bat, and Bird, . . . . . . . . .321 



XVI. J 



XVII. 1 Illustrating Professor Turner's Paper on the Gravid Uterus, and on the Arrange- 

 XVIII. J ment of the Foetal Membranes in the Cetacea, . . . . .467 



XIX. "j 



XX. (illustrating Professor Alexander Dickson's Paper on Some Abnormal Cones of 

 XXI. C Pinus Pinaster, . . . . . . . . . .505 



XXII. ) 



XXIII. ^ 



vvtv' I Illustrating Dr Thomas R. Fraser's Paper on an Experimental Research on the 



VVT7- f Antagonism between the Actions of Physostigma and Atropia, . .529 



"X"X"VT ( Illustrating Mr J. A. Broun's Paper on the Lunar Diurnal Variation of Magnetic 

 XYVTT< Declination at Trevandrum, near the Magnetic Equator, deduced from 

 YYVTTT I Observations made in the Observatory of His Highness the Maharajah of 

 AJLViii. ^ Travancore, G.C.S.I 735 



XXIX 



C Illustrating Professor Turner's Paper on the Occurrence of ZipMus cavirostris in 



-^-^-^-'-j the Shetland Seas, and a Comparison of its Skull with that of Sowerby's 



\ Whale (Mesoplodon Sowerbyi), . . . . . . . .759 



XXXI. \ Illustrating Professor Balfour's Paper, Remarks on the Ipecacuan Plant (Cephaelis 

 XXXII. _j Ipecacuanha, Rich ), as cultivated in the Royal Botanic Garden, Edinburgh, 779 



