19 



wliere (he silver accumulated in a beautifully revived form 

 Ihis result had been previously contended for by Professor 

 Muschman, a continental chemist, but its success doubted 

 or wholly denied by the chemical philosophers of this 

 country. ^ 



May 12.-Mr. T. Baskerville, jun. delivered a second 

 l^ecture on Electricity. He treated on the diffused appear- 

 ance of the electric light in vacuo, and its compactness when 

 observed in the atmosphere. The star and pencil of electric 

 light were shewn by various experiments, to support the the- 

 ory of trankhn of the single fluid. The phenomena of the 

 i^eyden Jar were then entered upon, and numerous expe- 

 riments performed by its means, amongst which were the 

 remarkable effects of the transmission of the electric fluid 

 over cards painted with various mineral colours, excitine a 

 presumption that the electric fire might contain sulphur, from 

 the coincidence of its colouring efi-ects with the precipitates 

 thrown dovvn from metallic solutions by sulphuretted hv- 

 drog-en. The inflammation of combustible substances from 

 the intense action induced by the shock was shown by 

 divers experiments concluding the lecture 



May 19.-Mr. Martin delivered a second Lecture on 

 ^ hies, which contained a review of the theories of Mande- 

 VI le Clarke, ^\ollaston, Hobbs, and Hume, together with 

 what IS called the selfish system; and arguments were ad- 

 duced for the purpose of proving each of the above systems 

 01 morals erroneous. 



May 26.-Mr. Phillips delivered his second Lecture on 

 uptics. Jle explained the decomposition of white li-ht 

 .nto ,ts prismatic colours, and their analogy to mu.^c. 

 He lecalled the attention of his hearers to the laws and 

 properties of refraction, by rays of light passing throuHi 

 diflerent mediums ; tlie refractive power of lense^, by thei 

 different formations ; their application as spectacles for Ion- 

 and short-sighted persons ; the phenomena of the rainbow 



formation of tdescopes and microscopes.' He gave a minute 

 description of the human eye, which he illustrated by di ! 

 Kcc mg several eyes of animals, and pointing out the various 

 coat, and humours to which he had lilludcd! 



June 2.-Mr. Warman delivered a Lecture on Phonics 

 He commenced by giving a satisfactory etymological de- 

 finition o the terms by which the science I known and 



m<^n: of tlf r" °^T-"kt'"-" I"--^---^' i'l-trltio'ns by 

 means ol the siring oJ a violin, and musical glasses. He 



