VI CONTENTS OF VOL. XXXII. — THIRD SERIES. 



Page 

 On the Crystallized Monohydrate of Zinc, by M. J. Nickl^s . . 315 



On the Hydrate of Cadmium, by M. J. Nickles 317 



Action of Acids and Alkalies on Asparagin and Aspartic Acid, 



byM. Piria 317 



Meteorological Observations for February 1848 319 



Table 320 



NUMBER CCXVL— MAY. 



Dr. T. Andrews on the Heat disengaged during the Combina- 

 tion of Bodies with Oxygen and Chlorine. (With a Plate.). . 321 

 The Astronomer Royal's Remarks on Professor Challis's Theo- 

 retical Determination of the Velocity of Sound 339 



Mr. G. G. Stokes on the Constitution of the Luminiferous 



^ther " 343 



Mr. J. P. Joule on Shooting Stars 349 



Mr. J. Cockle's Analysis of the Theory of Equations, with a few 

 Remarks on recent English Works on the subject. In a 

 Letter to T. S. Davies, Esq., F.R.S., &c. : with Notes on 



some of the Topics, by Mr. Davies 351 



Sir W. R. Hamilton on Quaternions ; or on a New System of 



Tmaginaries in Algebra (conlinued) 367 



Prof. E. Wartmann on an easy method of measuring the di- 

 stance and height of an elevated point, accessible or inacces- 

 sible, fixed or moveable, by means of a single instrument, and 



by taking the observation from only one station 375 



Notices respecting New Books : — Herschel's Astronomical Ob- 

 servations made at the Cape of Good Hope 378 



Proceedings of the Royal Society 389 



Action of Nitric Acid on Brucia, by M. Aug. Laurent 392 



On Cacothelin, by M. Aug. Laurent 393 



On a new Method of estimating Arsenic, Antimony and Tin, 



by Prof. H. Rose 394 



On a Reagent for Strychnia 396 



On the Presence of Selenium in the Iodide of Potassium .... 397 

 On Transparent and Ojiake Arsenious Acid, by M. Bussy .... 398 



Meteorological Observations for March 1848 399 



Table 400 



NUMBER CCXVII.— JUNE. 



Sir D. Brewster on the Decomposition and Dispersion of Light 

 within Solid and Fluid Bodies. (With a Plate.) 401 



Mr. G. Boole's Remarks on a Paper by the Rev. B. Bronwin on 

 the Solution of a particular Differential Equation 413 



