Chemistry and Mineralogy. 441 



conducted in the spirit of true philosophy, must lead u* to 

 new discoveries of the power and wisdom, and harmony and 

 beauty, which pervade all the works of Him who is Eternal."" 



Professor Whewell then delivered a lecture on several cu- 

 rious phenomena connected with the tides ; and concluded his 

 remarks by expressing, in very warm terms, the feelings of 

 gratitude entertained by himself and other strangers of the 

 Association, for the kind and hospitable reception they had 

 met with in Edinburgh. 



Professor Sedgwick gave a general account of the proceed- 

 ings of the Geological and Geographical Section, and expressed 

 his conviction that geology would benefit much from the dis- 

 cussion which had animated the Geological and Geographical 

 Section. He concluded by re-echoing the sentiments of Dr 

 Abercrombie, that the pursuits of science, instead of leading to 

 infidelity, had a contrary tendency, — that they went rather to 

 strengthen religious principles, and to confirm morals. 



The President announced that the concluding General Meet- 

 ing of this Association would take place in the College Library 

 at three o'clock to-morrow. 



Saturday^ 13M September. 



Section B. — Chemistry and Mineralogv. 



A communication from Mr Fox was read on the electro-magne- 

 tic condition of mineral veins, and the Section agreed to recom- 

 mend the continuation of tliese experiments. 



Mr Stevelly explained the construction of a new vernier, and 

 its application to Dr Wollaston's scale of chemical equivalents. 



Some observations by Mr Henry H. Watson on Sir John Les- 

 lie's hygrometer, were then read by the Secretary. 



Professor Johnston gave a notice of the results of a paper he 

 communicated to the Section, on the dimorphism of the sesqui- 

 iodide of antimony. 



Mr Low exhibited some interesting products of gas flues and 

 retorts, and of long continued heat. 



Dr Gregory exhibited a series of specimens of organic principles, 

 — after which the Sectjon closed its meetings. 



