INDEX. 



697 



Fossils, 23, 41, 61 , 646, 652, 65 V, 660, 



, 666. 



Fox (R. W.) on the electricity of the 



copper vein in Huel Jewel mine, 



572. 

 Functions, calculus of principal, 513 ; 



conjugate, 519 ; exponential, 523. 



Geogi-aphy, physical, of North Ame- 

 rica, 1. 

 Geology of Berwickshire, 624. 



of North America, 1. 



of the great mountain range of 



the South of Scotland, 650. 



of the Orkneys, 644. 



of the Pentland Hills, 649. 



, on the change of level of the 



land and sea in Scandinavia, 652. 



) on marine shells of recent spe- 

 cies, at considerable elevations, 655. 



, on some caverns near the Giant's 



Causeway, in the island of Rathlin, 

 and the adjoining coast of Antrim, 

 659, 661. 



, on the coal-fields of Scotland, 



639. 



, on the limestone of Closeburn, 



651. 



, on the old red sandstone and the 



formations beneath it, 652. 



, on the ossiferous beds of the 



Forth, Clyde, and Tay, 642. 



, on the relations of mineral veins 



and the non-metalliferous joints in 

 rocks, 655. 

 Gilbertson (W.) on marine shells of 

 recent species, at considerable ele- 

 vations, near Preston, 654. 

 Glands, orbital, in birds, 609. 

 Glasgow, statistics of, 685. 

 Gordon (A.) on the polyzonal lens, 



595. 

 Gordon (Mr.) on the ' New Statistical 



Account of Scotland', 692. 

 Graham (Prof.) on hydrated salts and 

 metallic peroxides, and on the doc- 

 trine of isomerism, 579. 

 Graves (J. T.) on the theory of expo- 

 nential functions, 523. 

 Gray (W. jun.) on the quantities of 

 rain falling at different elevations 

 above the surface of the ground at 

 York, 560. 

 Greenock (Lord) on the coal-fields of 

 Scotland, 639. 



Gregory (Dr.), abstract of Dr. Reieh- 

 enbach's discoveries in destructive 

 distillation, 591. 



Gulf of Mexico, raised estuary forma- 

 tions of the, 13. 



Hail, origin of, 566. 

 Hailstone (Rev. J.) on a pecidiar os- 

 cillation of the barometer, 569. 

 Hall (Dr.) on the sensibilities of the 



cerebral nerves, 676. 

 Hamilton (Prof) on the application 

 to dynamics of a general mathe- 

 matical method previously applied 

 to optics, 513. 

 on conjugate functions, or alge- 

 braic couples, as tending to illus- 

 trate the doctrine of imaginary 

 quantities, 519. 

 Harcourt (Rev. W. V.) on the effects 

 of long-continued heat on mineral 

 and organic substances, 576. 

 Heart's action, cause of the, 137. 

 Heat, expansion of stone by, 569. 

 — — , long-continued, its effects on mi- 

 neral and organic substances, 576. 



, on the repulsion excited between 



surfaces at minute distances by the 

 action of, 549. 

 Henry (Dr. W.) on the laws of con- 

 tagion, 67. 

 Hibbert (Dr.) on the ossiferous beds 

 of the Forth, the Clyde, and the 

 Tay, 642. 

 Hodgkin (Dr.) on the effects of poi- 

 sons on the animal ceconomy, 682. 

 Hodgkinson (E.) on the collision of 



imperfectly elastic bodies, 534. 

 Howard (L.) on the difference of the 

 quantity of rain at different heights, 

 563. 

 Hydraulic engineering, its progress in 

 England with reference to rivers, 

 canals, and drainage, 473. 

 Hydraulics as a branch of engineer- 

 ing, state of our knowledge of, 415. 

 in France, Germany, and En- 

 gland, present state of, 447. 

 Hydrodynamics, on the reduction of 



an anomalous fact in, 531. 

 Hygrometer, Leslie's, on the use of, 

 569. 



Ichthyology, 179, 613, 617. 

 Imaginary quantities, on conjugate 



