CONTENTS. vii 
Page 
On an Electrical Phenomenon. By M. P. Moyle, Esq.........s..0000e 439 
On the Temperature of Mines. By R. W. Fox, Esq...........-.00005. 440 
On the Depression of the Barometer in Dec. 1821. By M. P. Moyle, Esq. 448 
Astronomical Observations. By Col. Beaufoy, FRS. ............00004. 450 
On Compound Interest. By Mr. James Adams. .........2..-ebeceeees 450 
Analytical Account of the Philosophical Transactions of the Royal Society 
MONG ONS OLS SOs Are LNs vss viv. eie cic meiaecelt (ela diniesocsle, oS cae Silelaieta'e 456 
Pecan Ot Hunt merino llebe oace oslo, seetiontone ~ ee Wie o Soe Geuaion cine 469 
Green Ore of Uranium from Cornwall ...............202 ccueeceeeeees 469 
Prof. Berzelius on the Sulphurets. .............-.+45 Sanda coepabensedcd 469 
metion of Magnesia on Salep. .........s002002seeecserans Hetoieleracyoreisis 469 
BMI Tea SEATTLE areyaTret totals ceten Sea a os ti alae aisieleininkass) sioverclewiaisls sree cie/sieiateis'e 470 
Mathematical Laws of Electro-Magnetism ............+eeeeeeeeseeees - 470 
Sezote Springs in North America, 02st sce... secentegdeetecessess + 470 
new Mineral called Gibbaite. ).... 402. sceea0 «sao newe suse Nhat sabes 470 
Tungstate of Lime............ als ataiaialdigebicialgureldae oateiceiamina'e asia seWieist 471 
Re Meera OO saa ciai sos ore cell Ged sida « » aid nieicins oleh Sjataye via . 471 
oe i bi ica Tail ene Mg lal eotglels Ue Sleis'es » 472 
Mr. Howard’s Meteorological Journal for October. .......6.eeseeeeeees » 473 
Wade Fas PN aides RR a RACE ok EE Re Se Ree VED 
PLATES IN VOL. IV. (New Series.) 
= . ; 
Plates. Page 
XSI —On the Magnetic Phenomena of the Electrical Connecting Wire. 2 
Crystalline Form of Diaspore. .......... aleve elehateletetarsleitecstelstehs 17 
HAI GUaSe. we eyes -feles oe sdolbenardsatoneinocoat atnislelsielaberols 18 
On the Sines of the Sum and Difference of Two Arcs........ 21 
X1V.—Description of a Cave discovered at Kirkdale, in Yorkshire .. 2 134 
XV.—Fossil Teeth and Bones found in the above-mentioned Cave... 140 
XVI.—Description of some peculiar Crystals of Sulphate of Potash.... 342 
XVII.—Description of some Shells found in Snowdon and its Neighbour- 
