Royal Institution of Great Britain, 437 



Oxides — Sulphurets— Processes by which these are decomposed, so as to yield pure 



Metals — Operations of the Assayer and Analyst---SmeUing and reduction upon the 

 large scale — Proposals for the consumption oi the Smoke and noxious Vapours re- 

 sulting from these operations. 



Lecture IV. Saturday, February 23rd. Physical Characters of the Metals— 

 Brilliancy — Opacity — Specific Gravity — Ductility — Tenacity — Malleability — Con- 

 ducting and radiating Powers in respect to Heat — their electric and magnetic re- 

 lations. 



Lecture V. Saturday, March 1st. Chemical Characters of the Metals — How 

 affected by Air and Water — Influence of Heat and Electricity upon these agencies — 

 Oxydizement of Metals by the preceding Agents and by Acids — Properties and Uses 

 of the principal metallic Oxides. 



Lecture VI. Saturday, March 8th. Metallic Chlorides — Iodides — Fluorides- 

 Bromides — Metallic Salts — Applications of these Compounds to various purposes of 

 the Arts. 



Lecture VII. Saturday, March \5th. Of the Tests or Re-agents by which the 

 different Metals are recognised and detected — Extraordinary delicacy of some of 

 them — Of the Means of detecting the poisonous Metals, and of the uncertainty of 

 some of the Methods which have been proposed. Articles of Food subject to me- 

 tallic adulteration. 



Lecture VIII. Saturday, March 22nd. Of metallic Alloys — Peculiar properties 

 of many of them — Ancient and Modern Coins — Plate — Precautions to preserve an 

 uniform Standard — Mirrors — Bronze — Brass — Bell-Metal — Pewter — Type Metal- 

 Tin Plate — Fusible Alloys — Intense action of certain metallic Compounds upon each 

 other. Nature and properties of Steel. 



Lecture IX. Saturday, March 29/A. Of Alkalies and Earths — Properties and 

 Uses of the former — Soaps — Combinations of the Alkalies and Earths — Earthen- 

 ware — Pottery — Porcelain — Glass — Hypothesis respecting the Nature of the Metals 

 —Conclusion. 



On Domestic and Ecclesiastical Architecture. By Alfred Ainger, Esq. 



Lecture I. Tuesday, February I9M. On the Sources of Beauty in Architecture. 



Lecture II. Tuesday, February 26M. On the Strength and Employment of 

 Materials in Architecture. 



Lecture III. Tuesday, March 4th. On the Means of increasing Strength by 

 Disposition and Arrangement. 



Lecture IV. Tuesday, March llth. The Application of these Principles to 

 Egyptian and Grecian Architecture. 



Lecture V. Tuesday, March ISth. To Roman and Palladian Architecture. 



Lecture VI. Tuesday, March 25th. To Gothic and Miscellaneous Architecture. 



On Music. By Samuel Wesley, Esq. 



Lecture L Thursday, February 2Ut, On the Acquisition of a sound gmetal 

 Knowledge of Music. 



Lecture II, Thursday, February 28th. Of the best Mode of acquiring solid 

 Judgment concerning the various Styles in both Vocal and Instrumental Music. 



Lecture III. Thursday, March 6th. On Music best adapted to the Chamber. 



Lecture IV. Thursday, March \3lh. On Music most proper for Concerts. 



Lecture V. Thursday, March 20th. On Theatrical Music. 



Lecture VL Thursday, March 27th. On Church Music. 



