556 



INDEX to VOL. XXIX. 



ACETONE, on the synthesis of, 



535 ; on the conversion of, into 



allylene, 536. 

 Acetylene, researches on, 305. 

 Acid, on the use of the word, 262, 464. 

 Acids, fatty, on the synthesis of the, 537. 

 Acrolein e, on the action of hydrogen 



on, 533. 

 Adams (Prof. W. G.) on the applica- 

 tion of the principle of the screw 



to the floats of paddle-wheels, 249, 



351. 

 Air-pump, description of a new, 487. 

 Akin (Dr.) on calcescence, 28, 136; 



on the conservation of force, 205. 

 Aldehydes, on the propylic and buty- 



lic, 309. 

 Allylene, on the preparation of, 306, 



536 ; on the action of bromine and 



iodine on, 307. 

 Aluminium, on the ethide and methide 

 of, 316; on the atomicity of, 395. 

 Angstrom (A. J.) on a new determi- 

 nation of the lengths of waves of 



light, 489. 

 Antimony, on native sulphides of, 10. 

 Arcs, on the approximate graphic 



measurement of elliptic and tro- 



choidal, 22. 

 Arragonite, on the growth of coral- 



loidal,550. 

 Atkinson (Dr. E.), chemical notices 



by, 305, 374, 528. 

 Barometers, on the construction of 



double-pcale, 79. 

 Beilstein (M.) on the reducing action 



of tin and hydrochloric acid, 313. 

 Benzhydrole, researches on, 531. 

 Benzoic acid, on the action of nascent 



hydrogen on, 528. 

 Benzole series, on the synthesis of 



hydrocarbons of the, 311. 



Benzpinakone, on the constitution of, 

 533. 



Berard (M.) on some compounds of 

 iodine with acetylene, 305. 



Berthelot (M.) on iodide of acety- 

 lene, 305. 



Bismuth, analysis of native, 3. 



Bismuthine, analysis of, 5. 



Bohn (Prof.) on the history of the 

 conservation of energy, 215. 



Borsche (M.) on the preparation of 

 allylene, 536. 



Brewster (Sir D.) on the cause and 

 cure of cataract, 426 ; on hemi- 

 opsy, 503. 



Bunsen (Prof. R.) on some thermo- 

 electric piles of great activity, 159; 

 on a simple method of preparing 

 thallium, 168. 



Busk (G.) on the fossil contents of 

 the Gibraltar caves, 402. 



Butylene, researches on, 307. 



Butyric acid, on the synthesis of, 308. 



Buys-Bailot (M.) on the radiant heat 

 of the moon, 162. 



Caesium, on the separation of, 376. 



Calcescence, researches on, 28, 136. 



Calorescence, researches on, 28, 136, 

 164, 218. 



Cataract, on the cause and cure of, 

 426. 



Cayley (A.) on a quartic surface, 19; 

 on quartic curves, 105; on Lobat- 

 scbewsky's imaginary geometry, 

 231 ; on the theory of the evolute, 

 344 ; on a theorem relating to five 

 points in a plane, 460 ; on the in- 

 tersections of a pencil of four lines 

 by a pencil of tv\o lines, 501. 



Cerium, on the separation of, 376. 



Challis (Prof.) on the undulatory 

 theory of light, 329. 



