CONTENTS 



OF 



VOLUME EIGHTH. 



(Part First.) 



f. On the Action of Transparent Bodies upon the differently 

 coloured Rays of Light By David Brewster, LL. D. 

 F. R. S. Lond. & Edin. and F. A. S. Ed. Page 1 



II. Description of a New Darkening Glass for Solar Ob- 



servations , which has also the property of polari- 

 sing the whole of the transmitted Light. By 

 David Brewster, LL. D. F. R. S. Lond. & Ed. 

 andF.A. S. Ed. - - 25 



III. Observations on the Fire-Damp of Coal Mines ; with a 



Plan for Lighting Mines, so as to guard against 

 its Explosion. By John Murray, M. D. F. R. S. 

 Edin. Fellow of the Royal College of Physicians 

 of Edinburgh, -- - 31 



IV. On the Lines that divide each semidiurnal Arc into Six 



equal Parts. By W. A, Cadell, Esq. F. R. S. 

 Lond. & Edin. - - 61 



V. On the Origin of Cremation, or the Burning of the 

 Dead. By the Rev. John Jamieson, D. D. 

 F. R. S. Edin. & F. A. S. E. - 83 



VI. Additional Communications respecting the Blind and 

 Deaf Boy, James Mitchell. By John Gordon, 

 M. D. F. R. S. Edin. - • 129 



VII. 



