476 



INDEX. 



Van der Kolk (S.) on the mechanical 

 energy of chemical combinations, 

 433. 



Vapours, on the expansion and com- 

 pression of saturated, 238. 



Vibrations, on a simple method of 

 exhibiting the combination of rect- 

 angular, 207 ; on the communica- 

 tion of, from a vibrating body to a 

 surrounding gas, 401 . 



Villari (E.) on some special electro- 

 magnetic phenomena, and on 

 Weber's hypothesis on electromag- 

 netism, 79. 



Vision, on some laws of, 43; on a 

 new theory of, 192. 



Voltaic arc, on the new electromotive 

 force in the, 352. 



Vortex-rings in air, on, 12. 

 Walenn (W. H.) on imitation, 346. 

 Wanklyn (Prof. J. A.) on the action 



of sodium on valerianic ether, 454. 

 Water, on the transmutable nature of, 



106. 

 Wave-apparatus, on a new form of. 



14. 

 Wernicke (W.) on gilding glass for 



the preparation of optical mirrors, 



77. 



Wigner (G. W.) on the purification of 



sewage, 46. 

 Wilde (H.), experimental researches 



in magnetism and electricity, 81 . 

 Wohler (Prof.) on the formation of 



peroxide of silver by ozone, 160. 



END OF THE THIRTY-SIXTH VOLUME. 



PRINTED BY TAYLOR AND FRANCIS, 

 KEI) LION COURT, FLEET STREET. 



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