CONTENTS OF VOL. XXXIII 



(THIRD SERIES.) 



NUMBER CCXIX.— JULY 1848. 



Page 



Dr. J. Stenhouse on Alpha- and Beta-Orcine 1 



AIM. E. du Bois-Reymond and W. Beet* on the Theory of 



Nobili's Coloured Rings 7 



Mr. H. Hennessy on the Attraction of Spheroids 24 



Dr. G. O. Rees on a Function of the Red Corpuscles of the Blood, 



and on the Process of Arterialization 28 



Dr. G. O. Rees's Additional Observations on the subject of the 



foregoing Memoir 34 



Mr. W. Swan on certain Phsenomena of Capillary Attraction 

 exhibited by Chloroform, the Fixed Oils, and other Liquids : 

 with an inquiry into some of the causes which modify the form 

 of the mutual surface of two immiscible liquids in contact with 



the walls of the vessel in which they are contained 36 



Prof. Young on some Forms of Quadratic Moduli. In a Letter to 



Prof. De Morgan, &c 45 



M. Pliicker on Diamagnetism. In a Letter to Mr. Faraday. ... 48 

 Rev. Dr. Callan on the Construction and Power of a new form 



of Galvanic Battery , 49 



Dr. .1. Stenhouse on Chloropicrine 53 



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



Tmaginaries in Algebra (continued) 58 



Proceedings of the Royal Society 60 



Royal Astronomical Society 66 



On the Formation of Hyponitrite of Silver 75 



GCconomical preparation of Oxide of Antimony, by M. E. G. 



Hornung 76 



On the Chrysotil from the Vosges, by M. Delesse 76 



On Chloride of Gold as a Test of Organic matter in common water 77 



Analysis of the Ashes of Turnip Leaves 78 



New Minerals — Medjidite and Liebigite 79 



Meteorological Observations for May 1848 79 



Meteorological Observations made by Mr. Thompson at the 

 Garden of the Horticultural Society at Chiswick, near 

 London ; by Mr. Veall at Boston ; by the Itev. W. Dunbar at 

 Applegarth Manse, Dumfries-shire; and by the Rev. C. 



Clouston at Sandwick Manse, Orkney 80 



a2 



