vi CONTENTS. 
Page 
On the Pelnlebates of Iron. By Mr. Coopet. ...+eececeeeceqenneeeeee 28 
Critical and Analytical Account of the Br aesemical Teaxseeueuk of the 
Royal Society of London, for 1818. Part ll. (concluded)\....cceeesee 300 
Proceedings of the Royal Society, Feb. 25, March 4, 1!, and 18...... 305 
a Society for the Encouragement of Arts, Manufac- 
tures, ‘and Comrme4;nce. «oc. ss.000' dailies sg ctsay cee 307 
Beathonate of Morphiid 2).4- 2'¢.-+.0je0 else» n.> onninvennguanity tadar ieee - 309 
MLLER OIA «ccs la vcs acedatarniosle id ase ts, Oa RmtSL sya Shy cal oe auc chai plas pa ere ee ee 310 
demalysis of the Tawpmaalit, sss: 4s o¢iaveg* aqade>anaengagns impel sweat ibid. ° 
Pioapliate of Teens. fe ogee Wy sin 4) agggacaee was Perr ey ee ibid. 
Meagre Nephrite.............06 woes wail so Salih die.n,& = £0; o, Cicis aici eae 311 
Prof. Mahs’ Observations on Cornwall ....05-ecencssecqecesscncs o4¢aaaKpide 
Remarkable Mineral Spring in Java. ........cecgecensenceeeeecsgeg eens 312 
Ci bltinese Stove WOES go> 24.45 +.40's caceogaanyentneca ne gi cla wns costars he. 313 
Temperature of the Bottom of the Sea .,......cssyqseceeeccecctsaccece O14 
iantiirona a Cork Uree:". . < ses was s of vice a0 anveelelau ow «ame ene ibid. 
RERICOMCUUTON 0) a:006 614 ah a calcd olde Philo Git 2d <aaP batho dbeatalate es antanees 315 
State of the Barometer, Thermometer, and Magnetical Needle, at Trényem 
(Drontheim), in Norway, from 1762 to 1783, inclusive......,..0+++ - 316 
Berzelius’s New Work on Mineralogy.—Sp. Gr. of Hydrogen.....-.+4+. 317 
Col. Beaufoy’s Magnetical and Meteorological Observations, for February. 318 
= ae 
NUMBER LXXVII.—MAY. 
On the Measure of Temperatures, and on the Laws of the Communication 
of Heat. By MM. Dulong and Petit (concluded) .......e0+reeseeree 321 
On the Weight of a Cubic Inch of Distilled Water ; and the Sp. Gr. of 
Atmospheric Air. - By E. W. M. Rice.. ss aqsiiaess mass, saviensameaetn $39 
SeaiVestium. By Dr. Von Vest. .... 0s iccescsasascd viens as Comianian 344 
On Sulphuretted Chyazic Acid. By R. Porrett, Jun..........eeseeeees 356 
New Demonstrations of the Binomial Theorem. By Mr. Herapath.,.. 364 
Critical. and Analytical Account of Recherches sur I’Identité des Forces 
Chimiques et Electriques. Par Prof. GErsted ........+.. = sfalelqin rama 368 
Proceedings of the Royal Society, April ...,...ss.eeeenceccueeeeeee 377 
Geological Society, Jan, 15, Feb. 19, and Mareh 5.. 378 
lee: ACiAiOF Sal phi: . ois’ vise'ks ¢camaweisvbie.c te mamen niche oe enictne ha mTOeEE 380 
New Compound of Oxygen and Hydrogen .......seseeeeeereserereceeee ibid. 
PIVPAVCNites «0's. cirque ane v)v ods ind duiebatcewy.sincd tems abo habe ss aaaen ae 38k 
Plombpomame:s...3 obs dais ised oxpesde oepieq hl apenenmans Gam uae en ibid. 
PTE po 0.55 «'. <sikas eaMewtaving DIK dimen eane woes des gaed: Jeeta ibid. 
Crichtoniteand Elba ints OWE. 6 cdieltin Adis pala tanee nants o <0Gjsan se e-ag 382 
Pte CLAP iba dil dawn Wed «fs 49¥ evbickewelay abe vaaoute ee ibid. 
Persulphates. of Trot. iv.... caeecckess0drevsacshadeQateswanens<eeinaee ibid. 
Gauze Veils suggested as Preventives of Contagion. By Mr. Bartlett.... 383 
On the Lunar Atmosphere. By. Mr. Emmett, ......sccceeeeeeeneeeeee 384 
On Dew, and on the Vemperature of the Sea. By Mr. J. Murray...... 395 
On Galvanic Shocks. By Mr. John Woolrich.......- eevee Kove cerece ". 386 
