CONTENTS. 
On two new Compounds of Chlorine and Carbon, and on a new 
Compound of Iodine, Carbon, and Hydrogen,- .«. 337 
An Analysis of Mr. Baity’s ae Tables and Remarks 
for the Year 1822, ... ae, es bad 
On the best Kind of Steel mad fore fora | eae Needle, 359 
On the Apparatus for restoring the Action of the Lungs in oF 
parent Death, 26.0 oes 00 AOS Loh bed Ail 
On Spade Husbandry, «2 >. bs aa whe a 
On the Graduation of the Ruakiprenls oe ee 401 
On. the Porcelain Clay and Buhkr-stone of Halkin Mountain, 
Flintshire, .. Bis ss ee uae on 404 
Description of the Petrifaction Ponds at Shirameen, (a Village 
near the Lake of Ourmia, in Persia,) which produce the 
transparent Stone known by the Name of Tubriz Marble, 413 
Process of prepuring Saltpetre, and Mode of manufacturing 
Gunpowder, in Ceylon, .. ee ee 415 
On Embanking 166 Acres of Marsh oe from the Sea, 416 
On the Smelting of Tin Ores in Cornwall and Devonshire, 417 
Successful Result of an Experiment on Draining of Land, 424 
Account of a Volcanic Eruption in Iceland, .. ee 428 
On a particular Construction of M. Ampure’s Rotating os 
in er, ee ee ee ee ee eo 
Dewan of the Gooseberry. Caterpillar; and practical 
Means for preventing its Ravages, «. : ee 435 
Onan Insect which is occasionally very injurious to 0. Fruit-Trees, 
439 
Ona new Method of determining the Latitude of a Place iia 
Observations of the Pole- Star, é 7 ad 
Experiments on the Combination of Acetis ‘Acid and ya 
with volatile Oils, aa ak SO et 
Notices respecting New Books, . - 54, 213, 293, 384, 454 
Proceedings of Learned Societies, 56, 143, 217,501, 385, 455 
Intelligence and Miscellaneous Articles, 57, 145, 221, 305, 
389, 460 
List of Patents, ”" -» 68, 152, 236, 319, 399,471 
Meteorological Tables, 79, 159, 239, 320, 400, 472 
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THE 
