576 



INDEX. 



Watt, remarks on certain statements in 

 Lord Brougham's life of, 106, 478. 



Wax, on the action of nitric acid on, 66 ; 

 dry distillation of, 67. 



Wilson (E.) on the development and 

 growth of the epidermis, 82. 



Wohler (Prof.), method of purifying ox- 

 ide of uranium from nickel, cobalt and 

 zinc, 232. 



Wurtz (A.) on the preparation of the hy- 

 pophosphites, 236. 



Yorke (Lieut.-Col. P.) on the solubility 

 of the oxide of lead in pure water, 1 7. 



Young (Prof. J. R.) on the general ex- 

 pression for the sum of an infinite geo- 

 metrical series, 10; on differentiation 

 as applied to periodic series, 213. 



Yttro-cerite, on a new locality for, 559. 



END OF THE TWENTY-EIGHTH VOLUME. 



PRINTED BY RICHARD AND JOHN E. TAYLOR, 

 RED LION COURT, FLEET STREET. 



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