•jCiENTIFIC NEW*. SMl 



them with more altention, than 1 fear they do. The present 

 state of chemical science imperiously demands it, 

 I remain, yours &c. 



Manchester, JOHN DALTON* 



itfoy Mtf 15/A, 1811. i;i>p«rfif 



SCIENTIFIC NEWS. 



Royal Society of Edinburgh* 



N the 4th of March, Mr. Allan read a paper on the Rocks in the 



rocks of the environs of Edinburgh, being the first of a 1^7''?"^ ?f 

 1 . 1 . 1 1 • 1 • nil Edinburgh, 



•cries, which he proposes to read on this subject. Ine 



present embraced the rocks of St. Leonard's Hill and Salis- 

 bury Craig. The specimens illustrating the subject he pre- 

 sented to the Society, to be deposited in their cabinet. 



On the 18th, Sir George Mackenzie read some geological 

 remarks on the appearance presented by different rocks in Ice- 

 land ; and showed their importance in connecting the pheno- 

 mena of volcanoes with the principles of the Huttonian theory. Huttoniaa 

 Sir George brought forward the results of Sir James Hall's ex- t^^^'^y* 

 periments on heat modified by compression, and successfully 3.«^K!( 



applied them to support his conclusions. The facts were 

 explained in a satisfactory manner, and the whole paper 

 was so important in a geological point of view, that we re- »Hj ni ItpO 

 g ret that it is not in our power to give an analysis of it.**' 'S^'* 

 We understand, however, that it will form a part of ^^e ^^^.q^j^^ ^^ 

 account of Iceland, which Sir George and his friendis are Iceland, 

 about to publish, the work is now in the press. 



On the Ist of April, Dr. Brewster read a description of a CapiHaTVkt-^ 

 new instrument, for measuring capillary attraction, the in- traction. ^^ 

 Btrument to be exhibited at a future meeting. 



Prof. Playfair read a very interesting paper, being pa>"t pj.^ggg^j. pi^^^ 

 of his new edition of his illustrations of the Huttonian fair's il lustra-; 

 theory, entitled Jlemarks on the natural History of Volca- H[^utto,i[]iJJ ■* 

 ^lOeSt theory, 



Hoyal 



