II CONTENTS. 



ART. PAGE 



X. On the Constitution of Liquid Muriatic Acid, at different 

 densities. By Andrew Ure, M.D., F,R.S.,Prof. of the 

 Andersonian Institut. Glasgow, &c 287 



XI. Desciiption of an Electro-magnetical Apparatus for the 

 exhibition of Rotatory Motions. ByM. Fakaday, Chem. 

 Assist. Roy. Institution 283 



XII. Proceedings of the Royal Society 300 



XIII. Account of the Progress of Foreign Science 305 



XIV. Analysis of Scientific Books 34.3 



i. Fumifugiuni ; or, the Inconvenience of the Aer and Snioake of 

 London dissipated. Together with some Remedies, humbly proposed 

 by John Evelyn, Esq., to his sacred Majestic, and to tiie Parlia- 

 ment now assembled. London, 1661 



ii. One Thousand Experiments in Chemistry, vrith IlUistrations of 

 Natural Phenomena, and Practical Observations on the Manufac- 

 turing and Chemical Processes at present pursued in the successful 

 cultivation of the Usefid Arts ; with numerous Engravings on wood 

 and topper. By Colin Mackenzie. 



iii. Philosophical Transactions of the Royal Society of London, for 

 the year isai. Part IL 



XV. ASTKONOMICAL AND NaUTICAL COLLECTIONS, 



No. VIII 581 



i. [Second] Report on tliepresentstateofRanisden's Dividing En- 

 gine. By Dr. W. H. Wollaston. (See Vol. IX. P. 317.) 



ii. Mr. Ivory's Method of Computing the Latitude from two Alti- 

 tudes and the time intervening. 



iii. Apology for the " Postscript on Refraction," in answer to Mr. 

 Ivory's Remarks. 



iv. The Variation of the Temperature of the Atmosphere deduced 

 from the Mean Refraction. 



v. Account of some Optical Inventions of Professor Amici. 



XVI. Miscellaneous Intelligence 402 



I. Mechanical Science. 



§ Mechanics, the Arts, &c. 



I. Letters from Messrs. Parkinson and Frodsham, 

 relative to the Chronometers employed in the late Arctic E.xpc- 

 dition. 2. Steam Engines in England. 3. Prize Questions. 

 5. Lithography. 6. Preservation of Milk. 7. Preservation 

 of Cauliflowers. 8. Use of Larch Bark in Tanning, p. 

 Atkin's Rock. 10. Preservation of Fresco Painting. 11. 

 Green Paint 402 



