VI CONTENTS. 



Page 



To preserve the Colour of Red Cabbage 304 



Note on the pretended Alkali of the Daphne 305 



On the Production of Liquid Anhydrous Sulphurous Acid 307 



Organic Analysis by Peroxide of Copper 308 



Oxalate of Lime decomposed by Potash 309 



Analysis of Pinite, from St. Pardoux, in Auvergne 309 



Analysis of Cinnamon-stone, from Ceylon 310 



Singular Form of Crystals of Sahlite 310 



American Localities of certain Minerals and Fossils 312 



Analyses of Chrysoberyls from Haddam and Brazil 315 



Description and Analysis of Sillimanite, a new Mineral 315 



Extraordinary Extent of the Baize and Flannel Manufacture at Rochdale. 316 



Electromagnetic and Galvanic Experiments 317 



New Scientific Books 317 



New Patents 318 



Mr. Howard's Meteorological Journal i 319 



NUMBER V.— NOVEMBER. 



Prof. Cumrning on the Use of Gold Leaf as a Test of Electromagnetism. 321 



Mr. Herapath on the Solution of vj/ 1 x = x 322 



Col. Beaufoy's Astronomical Observations 329 



M. Berzelius on Fluoric Acid 330 



Mr. South on Mr. Battley's Method of preparing Morphia 343 



Dr. Henry on some of the Aeriform Compounds of Nitrogen {concluded) . 344 



X's Reply to Mr. Daniell 348 



Report on Steam-Engines 35 1 



Or. Torry on the Columbite of Haddam (Connecticut) 359 



Copper Sheathing 362 



Dr. Fitton on the Strata helow the Chalk, &c. (With a Plate.) 365 



Juice of Elder Berries as a Test 384 



Volatility of the Salts of some of the Vegetable Alkalies 384 



Existence of Manna in the Leaves of Celery 385 



Iodous Acid 386 



Inflammation of a Mixture of Oxygen and Hydrogen under Water 387 



Advantageous Mode of using Alcohol in Vegetable Analysis 387 



Garnet 388 



Meionite 38q 



Erlanite, a new Mineral 389 



Native Compounds of the Oxides of Uranium and Sulphuric Acid 390 



Notice of the Lenzinite from the Neighbourhood of Saint-Sever sg 1 



American Localities of some Minerals S91 



Vesuvian Minerals 3g2 



Contractions of Crystals by Heat. 393 



On the Optical Axes of certain Crystals 3Q3 



On certain Formations deposited from Fresh Water 394 



