viii CONTENTS. 



SUPPLEMENT TO VOL. XXL 



Engraxings of the following Objects: 1. Mr. Collier's Ship's Stove: 2. Mr. Sliip- 

 ley's Floating Light: 3. Mr. Acton's Improvement in the Still: 4. Crystals of 

 Caibonate of Lime. 



I. Essay on the Composition of Alcohol and of Sulphuric Eiher. By Theodore 

 de Saussure , y ' ■<• - - 321 



IL Description of an imiproved Ship's Stove. By Mr. Joseph Collier, No. 1 1, 

 Crown Street, Soho ----- 337 



HL Account of a Floatintj Light calculated to save the Lives of Persons^ who 

 have the Mis^fortune to fall oveii Orird in the Night from any Ship. Invented 

 by Mr. Wm. Shipley, Founder of the Society for the Encouragement of Arts, 

 Manufactures, and Commerce , , . 335 



IV. An Essay on the Sugar of Grapes. By Professor Proust - 341 



V. Account of a simple Improvement in the common Still. In a Letter from 

 Mr. J. Acton - - - - - 358 



VI. Description of a new Variety of Carbonate of Lime. By R. J. Hauy 35p 



VII. Second Letter on the Subject of the New Metals, By Mr. A. Combes 



363 



VIII. Electro-Chemical Researches, on :he Decomposition of the Earths ; with 

 Obser/a; Oils on the Metals obtained from the Alkaline Earths, and on the 

 Amalgam procured from Ammonia. By Humphry Davy, Esq. Sec. R. S. 

 M.R.I. A. ..... 366 



Scientific N-:ws, ^ , « ^ ., "^ 383 



