CONTENTS OF VOL. XIX. 
(FOURTH SERIES.) 
NUMBER CXXIV.—JANUARY 1860. 
Page 
Mr. T. Tate on the Construction of certain new forms of 
Muerna-Barometersy 82, Sisipstel. et Word ee Seah 1 
M. W. G. Hankel on the Electric Deportment of the Flame of 
Alcohol . : Meade 9 
Mr. R. P. Greg on ‘several New ‘British Minerals .........- 13 
Mr. J. N. Hearder’s Extracts from Notes on Electrical Conduc- 
RNR SRT Sata cet oss ANE Ooo OR ith ot Sigs 14 
Prof. Maxwell on the Motions and Collisions of Perfectly Elastic 
PMPHCTERG 5) 4 o'c. 5 seer tsina” eee F2. nid Part dine Ve oak. vdby 19 
Prof. H. Rose on the different States of Silicic Acid ........ 32 
Dr. Woods’s Description of a new Actinometer ............ 39 
Prof. Challis on the possibility of finding a Root, real or imagi- 
SiaE eles CVEUG PIOGALIOR 3 oo so scl siz venivla's « 5 2's CANS 46 
Dr. Atkinson’s Chemical Notices from Foreign Journals .... 48 
Proceedings of the Royal Society :— 
Dr. Pavy on Lesions of the Nervous System producing 
Diabetes. . 52 
Dr. Davy on the Electrical Condition of the ‘Ege of the 
Common.Fow! .2.0este vi eens Aro Be, 55 
Mr. J. Toynbee on the transmission of Sonorous Undula- 
tions inthe Human Ear ... 56 
Mr. J. P. Gassiot on the Electrical Discharge in in vacuo with 
an extended Series of the Voltaic Battery .......... 59 
Dr. Tyndall on the transmission of Radiant Heat through 
Gabeous Bodies). 3.'.. 26005; ere eh. te eS, 60 
Messrs. Bunsen and Roscoe’s Photochemical Researches. . 61 
Dr. Simpson on the Action of Acids on Glycol ........ 69 
Proceedings of the Geological Society :— 
Mr. T. W. Atkinson on some Bronze Relics from an Auri- 
FP OBNG: WH SIOCTIG Giga te cece ese de se ae eines se 75 
Mr. C. Heaphy on the Volcanic Country of Auckland, New 
CT TO chy ei il ltd hela iy ey eh ey a 75 
Mr. T. Burr on the Geology of a part of South Australia. 76 
The Rey. J, E. Woods on some Tertiary Deposits in South 
PEN Cpe te of Batol, aati 9 a ele pri ae te Pie Prue 77 
On a New Mineral containing Niobium, by Dr. Julius Potyka. 78 
