CONTENTS. Ill 



Page 

 XXVII. HISTORY OF MECHANICAL INVENTIONS AND PRO- 

 CESSES IN THE USEFUL ARTS, 148 



1. Mr. Vallance's Apparatus for Freezing Water, - ib. 



2. Account of Mr. Dalton's Process for determining the Value of 



Indigo, - - - - - - 149 



3. Mushet's Process for alloying Copper for Ships, - ib. 



4. Mr. Mackintosh's Process for rendering impervious to water 



and air all kinds of Cloths ; also Leather and Paper, &c. 150 



5. M. M. Farrimann and Thilly's Process for rendering Leather, 



Canvass, Linen, &c. Water Proof, - - ib. 



6. Siemen's Improvement on the Process of making Brandy from 



Potatoes, - - - - - 151 



7. Account of Improvements on Thin Circular Saws, - ib. 



8. On the Invention of Floating Breakwaters, - j ib. 



XXVIII. ANALYSIS OF SCIENTIFIC BOOKS AND MEMOIRS, 152 



I. Der Monte Rosa. Eine Topographische und Naturhistorische 

 Skizze nebst einem Anhange der von Herrn Zumstein gemach- 

 ten Reisen zur Ersteigung seiner Gipfel. — Monte Rosa. A To- 

 pographical and Historical Sketch, with an Appendix of the 

 Journies of M. Zumstein to these Summits. By Louis Baron 

 de Weiden. With a Topographical Chart and Lithographic 

 Plates. Vienna, 1824, - ib. 



II. Memoirs of the Literary and Philosophical Society of Manches- 



ter. Second Series, vol. iv. ... 156 



III. Account of the Bell Rock Light House ; including the Details 

 of the Erection and peculiar Structure of that Edifice. 1 vol. 

 4to. pp. 534. By Robert Stevenson, Esq. F. R. S. E. Civil 

 Engineer, - - - - - 160 



IV. Acta Academiae Naturae Curiosorum. Tom. XL Part I. 164 



XXIX. NOTICES OF RECENTLY PUBLISHED PERIODICAL 



BOTANICAL WORKS, - - 165 



Great Britain. — Botanical Magazine for September, No. 452. Botanical 

 Register for September, No. 115. No. 116. October. Hooker's 

 Exotic Flora for September, No. 14. No. 15. October. No. 16. No- 

 vember. Loddiges' Botanical Cabinet for September, No. 89. Gre- 

 ville's Scottish Cryptogamic Flora, No. 27. September. No. 28. Oc- 

 tober. No. 29. November, .... 165-169 



XXX. PROCEEDINGS OF SOCIETIES, - - 169 



1. Proceedings of the Royal Society of Edinburgh, - ib. 



2. Proceedings of the Wernerian Natural History Society, 170 

 .'>. Proceedings of the Society for promoting the Useful Arts in 



•Scotland, - - - - - - 171 



