CONTENTS. 



ART. PAGE 



X. Analysis of Scientific Books. 



i. Lectures on Comparative Anatomy, in which are explained the 

 preparations in the Hunterian Collection, illustrated by Engravings ; 

 to which is subjoined " Synopsis Systematis Regni Animatsis nunc 

 primum ex ovi modificationibus propositum." By Sir Everard Home, 

 Bt., V.P.R.S. F.S.A., F.L.S. . 134 



XI. Astronomical and Nautical Collections, No. XV. 



i. An Extension of the Inverse Series for Computation of Refraction 

 tog-ether with a direct Solution of the Problem, ii. Catalogue of the 

 Orbits of all the Comets hitherto computed. By Dr. Olbers and 

 Professor Schumacher, A str. Abl. 1 133 



XII. Miscellaneous Intelligence. 



I. Mechanical Science. 



1. Cutting of Steel by Soft Iron. 2. Water-proof Cloth. 3. Chain 

 Bridge over the Tamar. 4. Pottery Painting. 5. Extinction of Fires 

 in Chimnies. 6. Smut in Corn prevented ..... 155 



II. Chemical Science. 



1. Experiments with certain Substances under high Pressures. 2. 

 Fusion of Charcoal, Plumbago, Anthracite, and Diamond; probable 

 productions of Diamonds. 3. Action of Nitric Acid on Charcoal, pro- 

 duction of Cyanogen. 4. Crystallized Carbon-Artificial Plumbago. 

 5. Action of Steam on Solution of Silver and Gold. 6. Charge of 

 Musket Balls in Shrapnell Shells. 7. Action of Gunpowder on Lead. 

 8. Inflammation of Gunpowder by Slacking Lime. 9. Purple Tint 

 of Plate Glass affected by Light. 10. On the Uncertainty of Chemi- 

 eaJ^Analysis. 11. Solubility diminished by Heat. 12. Inflammabi- 

 lity of Ammoniacal Gas. 13. Amalgamation of Nickel and Cobalt by 

 Arsenic. 14. Chronium in Ore of Platinum. 15. Test of Platinum. 

 16. Combustion by Blow-pipe under Water. 17. Composition of 

 James's Powders. 18. Adulteration of Ultramarine. 19. On the 

 presence of Iodine in the Waters of Sales, Piedmont. 20. Evolution 

 of Gas during Metallic precipitation. 21. Electro-Magnetic Effects of 

 Alkalies, Acids, and Salts. 22. Table of Thermoelectrics. 23. Horizon- 

 tal Plate Electrical Machine. 24. Carbonic and Muriatic Acids of the 

 Atmosphere. 25. Vegetable Alkali from Rhubarb. 26. Change of 

 Fat in Perkin's Engine, by Water, Heat, and Pressure. 27. On 



