ii CONTENTS. 



(ART. PAGE 



X. On Evaporation. By John Bostock, M.D,, F.R.S., in a 



Letter to J. F. Daniell, Esq 312 



XI. Experiments on Oil of Mace 317 



XII. Observations on Naval ArcJiitecturc, and on the State of 

 Science in our Dock- Yards 320 



XIII. Proceedings of the Royal Society of London 323 



XIV. Analysis of Scientific Books — 1. Explanatory Dictionary 

 of Apparatus and Instruments. 2. Remarks on the different 

 Systems of Warming and Ventilating" Buildings 332 



XV. Astronomical and Nautical Collections. No. XX. 



i. Example of the Correction of a Lunar Distance ..... 339 



ii. Comparison of the Astronomical T.ables of Carlini and of 



Coimhra with those of Delambre and Burckliardt 341 



iii. Rules for Computing an observed Occultation 343 



iv. Error in a Table of Logarithms 347 



V. Historical Sketch of the various Solutions of the Problem of 

 Atmospherical Refraction 347 



XVI. Miscellaneous iNTEn-ufENCE, 



I. Mechanical Science. 



1. Influence of Temperature on Stone Bridges. 2. Vibration of 

 Wires in the Air. 3. Lapidary's Wlieel used in the East Indies. 

 4, New Piece of Artillery. 5. Preservation of Fish. 6. Artificial 

 Puzzolana , 379 



II. Chemical Science. 



1. On the Nature of the Electric Current. 2. Electromotive 

 Action of Water on Metals. 3. Electrical Actions produced by the 

 Contact of Flames and Metals. 4. Electrical Phenomena. 5. On 

 the Light of Incandescent Bodies, 6. Temperature of the Sun, &c. 

 7. Security of Steam Engines. S. Preparation of Damasked Steel. 

 p. On the Scales of Inju. 10, Reduction of Oxide of Iron by Ce- 

 mentation. 11. Analybis of Meteoric Stones and Iron found in 

 Poland.^ 12. PrCLCjicc of Titanium Ju Mica. 13. Decomposition of 



