1038 



INDEX. 



748 ; cerotic acid in ; preparation and 

 analysis of the acid; converted by 

 chlorine into a gum resin, formula of, 

 749. 



Cerotic acid, found in all European bees' 

 wax, not in Ceylon wax ; analogous 

 fact as regards volatile acid of butter, 

 749. 



Chalk, fossil foraminifera in, 627. 



Chelonia, development and homologies 

 of the carapace and plastron of, 792. 



Chemical change, on the condition of 

 certain elements at the moment of; 

 combining properties due to chemical 

 polarity, double decomposition the true 

 type of all chemical action, remark- 

 able case of formation of oxygen, 967. 



types, Dumas' memoirs on, 482. 



Chile, astronomical, meteorological and 

 seismometrical observations in, 991. 



Chlorine, new combinations of, 509. 



Christie (J. R.) on the use of the baro- 

 metric thermometer for the determi- 

 nation of relative heights, 597. 



Chylous urine, on the so-called, 931. 



Circulation, conditions of, 733 ; indica- 

 tions of galvanic currents in, 733. 



Claudet (A.) on the non-coincidence of 

 the focus of the photogenic rays with 

 that of the visual rays of the solar 

 spectrum, 513. 



on different properties of solar ra- 

 diation, producing or preventing a de- 

 posit of mercury on silver plates coated 

 with iodine, or its compounds with 

 bromine or chlorine, modified by co- 

 loured glass media and the vapours of 

 the atmosphere, 679. 



Clerk (H.), an account of the southern 

 magnetic surveying expedition, 596. 



Clerke (T. H. S.), obituary notice of, 

 888. 



Clift (W.), obituary notice of, 876. 

 Clocks, comparison of, for differences of 



longitude, 788. 

 Coal, chemical fact bearing on the origin 



of, 842. 



Cohesion, modifications of the force of, 

 560. 



Colour, change of, in a negro, 623. 



Comet, of 1844, 1845, on the, 600. 



Compass, relative dynamic value of the 

 degrees of, 626. 



Compasses, working of, on board iron 

 steamer Pluto, 749 ; precautions to be 

 observed in their correction ; adjust- 

 ment for local attraction alike efiTectual 

 in southern and northern latitudes, 750. 



Cooper (S.), obituary notice of, S83. 



Copley medals awarded to Mous. J. B. 

 Dumas, 481; Carlo Matteucci, 522; 



Th. Schwann, 576 ; U.J. J. LeVerrier, 

 635 ; Sir J. F. W. Herschel, 702 ; J. C. 

 Adams, 773 ; Sir R. I. Murchison, 

 871 ; P. A. Hansen, 1009. 



Copper, new combinations of, 509. 



Corpuscles of the blood, development 

 and functions of, 546. 



, venous and arterial yield diflferent 



matters, 677. 



Crocodilian reptiles, on the communica- 

 tions between the tympanum and pa- 

 late in ; distinct system of superadded 

 eustachian canals in, 927. 



Crops, on the rotation of, 551. 



Crust of the earth, changes in, improved 

 hypothesis of, 659. 



Cumberland, meteorology of ; quantity of 

 rain in lake districts, 757, 816 ; mild 

 temperature, 816, 952. 



Curr (J.) on the temperature of steam 

 and its corresponding pressure, 941. 0^ 



Currents, in the blood, generation of by 

 galvanism, 734. 



Curves, diamagnetic, 594. 



Cuvierian fold, newly-discovered portion 

 of the pericardium, 844. 



Cyanogen, analysis and decomposition of 

 the compounds of, 599. 



Daguerreotype plates, their sensitiveness 



restorable, 681. 

 Dalrymple (J.), description of an infusory 



animalcule allied to the genus Notom- 



mata of Ehrenberg, 800. 

 Dalton (J.), obituaiy notice of, 528. 

 Damoiseau (Baron de), obituary notice 



of, 649. 



Daniell (J. F.) and Miller (W. A.) on the 

 electrolvsis of secondary compounds, 

 504. 



Daniell (J. R), obituary notice of, 577. 



Darwin (R. W.), obituary notice of, 883. 



Daubeny, (G. C. B.), memoir on the ro- 

 tation of crops, and on the quantity of 

 inorganic matter abstracted from the 

 soil by different plants, &c., 551. 



Davy (J.), miscellaneous observations on 

 animal heat, 496. 



, on the action of the sun's rays on 



lithic acid, 512. 



, on the temperature of man, 564. 



, on carbonic acid as a solvent in the 



process of vegetation, 673. 



on carbonate of lime as an in- 

 gredient of sea-water, 828. 



on the temperature of man within 



the tropics, 946. 



Dealtry (Rev. W.), obituary notice of, 

 707. 



De Blainville (H.M.D.), obituary notice 

 of, 1011. 



