884 INDEX. 



D. 



Dialysis of gases, 399 (see Graham). 



DuppA (B. F.) and Feankland (E.). Researches on Acids of the Lactic Series, 309 (see Fbanklano). 



— . Synthetical Researches on Ethers, 37 (see Feanklandj. 



E. 



Elasticity, determination of the two constants of, for an isotropic solid, 185 (see Everett). 



EssoN (W.). A Theoretical Discussion of some cases of Chemical Change, 216. 



EssoN (W.) and Harcoukt (A. V.). On the Laws of Connexion between the Conditions of a Chemical 



Change and its Amount, 193 (see Harcourt). 

 Ethers, synthetical researches on, 37; constitution, &c., of certain, 59 (see Frankland). 

 Everett (J. D.). Account of Experiments on the Flexural and Torsional Rigidity of a Glass Rod, 



leading to the Determination of the Rigidity of Glass, 185. 

 Expansion by heat of water and mercury, 231 ; of metals and alloys, 861. 



F. 



Fatty acids, constitution of the, 68 (see Frankland) . 



Fox (W.). On the Development of Striated Muscular Fibre, 101. 



Frankland (E.) and Duppa (B. F.). Researches on Acids of the Lactic Series. — No. I. Synthesis of 

 Acids of the Lactic Series, 309. 



. Synthetical Researches on Ethers. — No. I. Synthesis of Ethers 



from Acetic Ether, 37. — Action of sodium and ethyl iodide upon acetic ether, and examination 

 of the products, 37 ; constitution and chemical relations of the ethers and ketones derived from the 

 duplication of the atom of acetic ether, 59 ; constitution of the fatty acids, 68. 



Gases, viscosity of, 249 (see Maxwell) ; dialytic separation of, by colloid septa, 399 (see Graham). 

 Graham (T,). On the Absorption and Dialytic Separation of Gases by Colloid Septa, 399. — Part I. 



Action of a septum of caoutchouc, 399. — Part II. Action of metallic septa at a red heat, 415. 

 Gun-cotton, manufacture and composition of, 269. 

 Gyrometer, liquid, and gyrometric governor, 661 (see Siemens). 



Harcourt (A. V.) and Esson (W.). On the Laws of Connexion between the Conditions of a Chemical 

 Change and its Amount, 193. — On the reaction of permanganic Snd oxalic acids, 193 ; Appendix, 

 containing a theoretical discussion of some cases of chemical change, 216. 



Hadghton (S.). On the Tides of the Arctic Seas. — Part III. On the Semidiurnal Tides of Frederiksdal, 

 near Cape Farewell in Greenland, 639. — Appendix to Part II. On the semidiurnal tides of Port 

 Leopold, North Somerset, 654. 



Heat, incandescence produced by invisible radiant, 11 ; influence of colour and mechanical condition on 

 radiant, 83. 



